2017 Proceedings - Cambridge, MA, USA - System Dynamics Society

2017 Conference

</p> </div> </div> </div> </div> </div> </div> </div> </div> <footer class="entry-footer"> <div class="container"> </div> </footer>  </article> <div class="container container--pad0"> <div class="co_auth_box"> </div> <nav class="navigation post-navigation" aria-label="Posts"> <h2 class="screen-reader-text">Post navigation</h2> <div class="nav-links"><div class="nav-previous"><a href="https://systemdynamics.org/2016-proceedings/" rel="prev"><span class="nav-subtitle">Previous:</span> <span class="nav-title">2016 Proceedings – Delft, Netherlands</span></a></div><div class="nav-next"><a href="https://systemdynamics.org/2018-proceedings/" rel="next"><span class="nav-subtitle">Next:</span> <span class="nav-title">2018 Proceedings – Reykjavík, Iceland</span></a></div></div> </nav> <div id="comments" class="comments-area"> <div id="respond" class="comment-respond"> <h3 id="reply-title" class="comment-reply-title">Leave a Reply <small><a rel="nofollow" id="cancel-comment-reply-link" href="/2017-proceedings/#respond" style="display:none;">Cancel reply</a></small></h3><p class="must-log-in">You must be <a href="https://systemdynamics.org/wp-login.php?redirect_to=https%3A%2F%2Fsystemdynamics.org%2F2017-proceedings%2F">logged in</a> to post a comment.</p> </div> </div> </div> </main> <aside id="secondary" class="widget-area"> <div id="woocommerce_product_categories-3" class="et_pb_widget woocommerce widget_product_categories"><h4 class="widgettitle">Product categories</h4><select name='product_cat' id='product_cat' class='dropdown_product_cat'> <option value='' selected='selected'>Select a category</option> <option class="level-0" value="2021-conference-tickets">2021 Conference Tickets</option> <option class="level-0" value="2022-conference-tickets">2022 Conference Tickets</option> <option class="level-0" value="2023-conference-tickets">2023 Conference Tickets</option> <option class="level-0" value="2024-conference-tickets">2024 Conference Tickets</option> <option class="level-0" value="2025-conference-tickets">2025 Conference Tickets</option> <option class="level-0" value="affiliate-publications">Affiliate Publications</option> <option class="level-0" value="board-games">Board Games</option> <option class="level-0" value="books">Books</option> <option class="level-0" value="business-management">Business & Management</option> <option class="level-0" value="children">Children</option> <option class="level-0" value="chinese-language-publications">Chinese</option> <option class="level-0" value="courses">Courses</option> <option class="level-0" value="digital-books">Digital Books</option> <option class="level-0" value="health">Health</option> <option class="level-0" value="isdc2025">ISDC 2025 Book Signing</option> <option class="level-0" value="japanese-language-publications">Japanese</option> <option class="level-0" value="jay-forrester-books">Jay Forrester Books</option> <option class="level-0" value="jay-forrester-courses">Jay Forrester Courses</option> <option class="level-0" value="journal">Journal</option> <option class="level-0" value="learning-fables">Learning Fables</option> <option class="level-0" value="literature-collection">Literature Collection</option> <option class="level-0" value="membership">Membership</option> <option class="level-0" value="methodology">Methodology</option> <option class="level-0" value="models">Models</option> <option class="level-0" value="other-languages">Other Language Publications</option> <option class="level-0" value="partner">Partner</option> <option class="level-0" value="partner-products">Partner Products</option> <option class="level-0" value="public-policy">Public Policy</option> <option class="level-0" value="referral">Referral</option> <option class="level-0" value="seminar-series-tickets">Seminar Series Tickets</option> <option class="level-0" value="society-publications">Society Publications</option> <option class="level-0" value="language-spanish">Spanish</option> <option class="level-0" value="sponsorship">Sponsorship</option> <option class="level-0" value="suggested-readings">Suggested Readings</option> <option class="level-0" value="summer-school-ticket">Summer School Ticket</option> <option class="level-0" value="sustainability">Sustainability</option> <option class="level-0" value="system-dynamics-topic">System Dynamics</option> <option class="level-0" value="systems-thinking">Systems Thinking</option> <option class="level-0" value="tickets">Tickets</option> <option class="level-0" value="uncategorized">Uncategorized</option> </select> </div><div id="woocommerce_product_search-3" class="et_pb_widget woocommerce widget_product_search"><form role="search" method="get" class="woocommerce-product-search" action="https://systemdynamics.org/"> <label class="screen-reader-text" for="woocommerce-product-search-field-0">Search for:</label> <input type="search" id="woocommerce-product-search-field-0" class="search-field" placeholder="Search products…" value="" name="s" /> <button type="submit" value="Search" class="">Search</button> <input type="hidden" name="post_type" value="product" /> </form> </div><div id="archives-3" class="et_pb_widget widget_archive"><h4 class="widgettitle">Post Archive</h4> <label class="screen-reader-text" for="archives-dropdown-3">Post Archive</label> <select id="archives-dropdown-3" name="archive-dropdown"> <option value="">Select Month</option> <option value='https://systemdynamics.org/2025/11/'> November 2025  (2)</option> <option value='https://systemdynamics.org/2025/10/'> October 2025  (1)</option> <option value='https://systemdynamics.org/2025/08/'> August 2025  (1)</option> <option value='https://systemdynamics.org/2025/03/'> March 2025  (2)</option> <option value='https://systemdynamics.org/2025/02/'> February 2025  (3)</option> <option value='https://systemdynamics.org/2025/01/'> January 2025  (3)</option> <option value='https://systemdynamics.org/2024/11/'> November 2024  (2)</option> <option value='https://systemdynamics.org/2024/10/'> October 2024  (2)</option> <option value='https://systemdynamics.org/2024/09/'> September 2024  (2)</option> <option value='https://systemdynamics.org/2024/08/'> August 2024  (2)</option> <option value='https://systemdynamics.org/2024/07/'> July 2024  (1)</option> <option value='https://systemdynamics.org/2024/06/'> June 2024  (4)</option> <option value='https://systemdynamics.org/2024/05/'> May 2024  (3)</option> <option value='https://systemdynamics.org/2024/04/'> April 2024  (6)</option> <option value='https://systemdynamics.org/2024/03/'> March 2024  (4)</option> <option value='https://systemdynamics.org/2024/02/'> February 2024  (1)</option> <option value='https://systemdynamics.org/2024/01/'> January 2024  (1)</option> <option value='https://systemdynamics.org/2023/11/'> November 2023  (3)</option> <option value='https://systemdynamics.org/2023/10/'> October 2023  (1)</option> <option value='https://systemdynamics.org/2023/09/'> September 2023  (3)</option> <option value='https://systemdynamics.org/2023/08/'> August 2023  (5)</option> <option value='https://systemdynamics.org/2023/05/'> May 2023  (2)</option> <option value='https://systemdynamics.org/2023/04/'> April 2023  (3)</option> <option value='https://systemdynamics.org/2023/03/'> March 2023  (4)</option> <option value='https://systemdynamics.org/2023/02/'> February 2023  (6)</option> <option value='https://systemdynamics.org/2023/01/'> January 2023  (2)</option> <option value='https://systemdynamics.org/2022/12/'> December 2022  (4)</option> <option value='https://systemdynamics.org/2022/11/'> November 2022  (5)</option> <option value='https://systemdynamics.org/2022/10/'> October 2022  (3)</option> <option value='https://systemdynamics.org/2022/09/'> September 2022  (10)</option> <option value='https://systemdynamics.org/2022/08/'> August 2022  (2)</option> <option value='https://systemdynamics.org/2022/05/'> May 2022  (2)</option> <option value='https://systemdynamics.org/2022/04/'> April 2022  (3)</option> <option value='https://systemdynamics.org/2022/03/'> March 2022  (5)</option> <option value='https://systemdynamics.org/2022/02/'> February 2022  (2)</option> <option value='https://systemdynamics.org/2022/01/'> January 2022  (4)</option> <option value='https://systemdynamics.org/2021/11/'> November 2021  (3)</option> <option value='https://systemdynamics.org/2021/10/'> October 2021  (3)</option> <option value='https://systemdynamics.org/2021/09/'> September 2021  (3)</option> <option value='https://systemdynamics.org/2021/08/'> August 2021  (11)</option> <option value='https://systemdynamics.org/2021/07/'> July 2021  (3)</option> <option value='https://systemdynamics.org/2021/06/'> June 2021  (5)</option> <option value='https://systemdynamics.org/2021/05/'> May 2021  (5)</option> <option value='https://systemdynamics.org/2021/04/'> April 2021  (3)</option> <option value='https://systemdynamics.org/2021/03/'> March 2021  (4)</option> <option value='https://systemdynamics.org/2021/02/'> February 2021  (3)</option> <option value='https://systemdynamics.org/2021/01/'> January 2021  (5)</option> <option value='https://systemdynamics.org/2020/12/'> December 2020  (9)</option> <option value='https://systemdynamics.org/2020/11/'> November 2020  (70)</option> <option value='https://systemdynamics.org/2020/10/'> October 2020  (40)</option> <option value='https://systemdynamics.org/2020/09/'> September 2020  (1)</option> <option value='https://systemdynamics.org/2020/05/'> May 2020  (1)</option> <option value='https://systemdynamics.org/2020/04/'> April 2020  (1)</option> <option value='https://systemdynamics.org/2019/10/'> October 2019  (3)</option> <option value='https://systemdynamics.org/2019/09/'> September 2019  (2)</option> <option value='https://systemdynamics.org/2019/07/'> July 2019  (1)</option> <option value='https://systemdynamics.org/2019/06/'> June 2019  (3)</option> <option value='https://systemdynamics.org/2019/05/'> May 2019  (1)</option> <option value='https://systemdynamics.org/2019/04/'> April 2019  (2)</option> <option value='https://systemdynamics.org/2019/03/'> March 2019  (2)</option> <option value='https://systemdynamics.org/2019/01/'> January 2019  (1)</option> <option value='https://systemdynamics.org/2018/12/'> December 2018  (1)</option> <option value='https://systemdynamics.org/2018/11/'> November 2018  (3)</option> </select> <script> (function() { var dropdown = document.getElementById( "archives-dropdown-3" ); function onSelectChange() { if ( dropdown.options[ dropdown.selectedIndex ].value !== '' ) { document.location.href = this.options[ this.selectedIndex ].value; } } dropdown.onchange = onSelectChange; })(); </script> </div><div id="woocommerce_widget_cart-3" class="et_pb_widget woocommerce widget_shopping_cart"><h4 class="widgettitle">Your Cart</h4><div class="hide_cart_widget_if_empty"><div class="widget_shopping_cart_content"></div></div></div></aside> <footer class="et-l et-l--footer"> <div class="et_builder_inner_content et_pb_gutters3"> <div class="et_pb_section et_pb_section_0_tb_footer subscribeform-footer et_pb_with_background et_section_regular" > </div><div class="et_pb_section et_pb_section_1_tb_footer footer-widget-section et_pb_with_background et_section_regular et_pb_section--with-menu" > <div class="et_pb_row et_pb_row_0_tb_footer et_pb_row--with-menu"> <div class="et_pb_column et_pb_column_1_4 et_pb_column_0_tb_footer et_pb_css_mix_blend_mode_passthrough"> <div class="et_pb_module et_pb_text et_pb_text_0_tb_footer et_pb_text_align_left et_pb_bg_layout_light"> <div class="et_pb_text_inner"><h3>SYSTEM DYNAMICS SOCIETY</h3></div> </div><div class="et_pb_module et_pb_text et_pb_text_1_tb_footer et_pb_text_align_left et_pb_bg_layout_light"> <div class="et_pb_text_inner"><p><a href="mailto:office@systemdynamics.org">office@systemdynamics.org</a></p> <p>815 E St<br />#12747<br />San Diego, CA 92112</p></div> </div><ul class="et_pb_module et_pb_social_media_follow et_pb_social_media_follow_0_tb_footer footer-sharelinks clearfix et_pb_bg_layout_light"> <li class='et_pb_social_media_follow_network_0_tb_footer et_pb_social_icon et_pb_social_network_link et-social-facebook'><a href='https://www.facebook.com/systemdynamics' class='icon et_pb_with_border' title='Follow on Facebook' target="_blank" rel="noopener noreferrer"><span class='et_pb_social_media_follow_network_name' aria-hidden='true' >Follow</span></a></li><li class='et_pb_social_media_follow_network_1_tb_footer et_pb_social_icon et_pb_social_network_link et-social-instagram'><a href='https://www.instagram.com/systemdynamics_/' class='icon et_pb_with_border' title='Follow on Instagram' target="_blank" rel="noopener noreferrer"><span class='et_pb_social_media_follow_network_name' aria-hidden='true' >Follow</span></a></li><li class='et_pb_social_media_follow_network_2_tb_footer et_pb_social_icon et_pb_social_network_link et-social-twitter'><a href='https://twitter.com/systemdynamics_' class='icon et_pb_with_border' title='Follow on X' target="_blank" rel="noopener noreferrer"><span class='et_pb_social_media_follow_network_name' aria-hidden='true' >Follow</span></a></li><li class='et_pb_social_media_follow_network_3_tb_footer et_pb_social_icon et_pb_social_network_link et-social-youtube'><a href='https://www.youtube.com/channel/UCZlM6xlE_al00biBTDdFyzA' class='icon et_pb_with_border' title='Follow on Youtube' target="_blank" rel="noopener noreferrer"><span class='et_pb_social_media_follow_network_name' aria-hidden='true' >Follow</span></a></li><li class='et_pb_social_media_follow_network_4_tb_footer et_pb_social_icon et_pb_social_network_link et-social-linkedin'><a href='https://www.linkedin.com/company/system-dynamics-society-inc-' class='icon et_pb_with_border' title='Follow on LinkedIn' target="_blank" rel="noopener noreferrer"><span class='et_pb_social_media_follow_network_name' aria-hidden='true' >Follow</span></a></li> </ul><div class="et_pb_module et_pb_text et_pb_text_2_tb_footer et_pb_text_align_left et_pb_bg_layout_light"> <div class="et_pb_text_inner"><p class="guide__star-logo"><a href="https://www.guidestar.org/profile/22-2738769" target="_blank" rel="noopener noreferrer"><img decoding="async" src="https://widgets.guidestar.org/gximage2?o=7074644&l=v4" no-resize-detection no-resize-detection no-resize-detection no-resize-detection no-resize-detection no-resize-detection no-resize-detection no-resize-detection no-resize-detection /></a></p></div> </div> </div><div class="et_pb_column et_pb_column_1_4 et_pb_column_1_tb_footer et_pb_css_mix_blend_mode_passthrough et_pb_column--with-menu"> <div class="et_pb_module et_pb_text et_pb_text_3_tb_footer et_pb_text_align_left et_pb_bg_layout_light"> <div class="et_pb_text_inner"><h3>QUICK LINKS</h3></div> </div><div class="et_pb_module et_pb_menu et_pb_menu_0_tb_footer et_pb_bg_layout_light et_pb_text_align_left et_dropdown_animation_fade et_pb_menu--without-logo et_pb_menu--style-left_aligned"> <div class="et_pb_menu_inner_container clearfix"> <div class="et_pb_menu__wrap"> <div class="et_pb_menu__menu"> <nav class="et-menu-nav"><ul id="menu-quick-links" class="et-menu nav"><li id="menu-item-155137" class="et_pb_menu_page_id-155137 menu-item menu-item-type-custom menu-item-object-custom menu-item-155137"><a href="https://systemdynamics.org/membership/">Membership</a></li> <li id="menu-item-93" class="et_pb_menu_page_id-93 menu-item menu-item-type-custom menu-item-object-custom menu-item-93"><a href="/register/">New Users (Create Account)</a></li> <li id="menu-item-90" class="et_pb_menu_page_id-90 menu-item menu-item-type-custom menu-item-object-custom menu-item-90"><a href="https://discuss.systemdynamics.org/">Community Forums</a></li> <li id="menu-item-24661" class="et_pb_menu_page_id-19391 menu-item menu-item-type-post_type menu-item-object-page menu-item-24661"><a href="https://systemdynamics.org/resources-old/system-dynamics-case-repository/">Successful Applications</a></li> <li id="menu-item-24621" class="et_pb_menu_page_id-1132 menu-item menu-item-type-post_type menu-item-object-page menu-item-24621"><a href="https://systemdynamics.org/governance/ethics-and-compliance/">Ethics and Compliance</a></li> <li id="menu-item-24502" class="et_pb_menu_page_id-1579 menu-item menu-item-type-post_type menu-item-object-page menu-item-24502"><a href="https://systemdynamics.org/governance/privacy-policy/">Privacy Policy</a></li> </ul></nav> </div> <div class="et_mobile_nav_menu"> <div class="mobile_nav closed"> <span class="mobile_menu_bar"></span> </div> </div> </div> </div> </div> </div><div class="et_pb_column et_pb_column_1_2 et_pb_column_2_tb_footer et_pb_css_mix_blend_mode_passthrough et-last-child" id="footer-products"> <div class="et_pb_module et_pb_signup_0_tb_footer et_pb_recaptcha_enabled et_pb_newsletter_layout_left_right et_pb_newsletter et_pb_subscribe clearfix et_pb_text_align_left et_pb_bg_layout_light et_pb_no_bg et_pb_newsletter_description_no_content"> <div class="et_pb_newsletter_description"><h2 class="et_pb_module_header">Join Our Mailing List</h2></div> <div class="et_pb_newsletter_form"> <form method="post" class="et_pb_newsletter_custom_fields"> <div class="et_pb_newsletter_result et_pb_newsletter_error"></div> <div class="et_pb_newsletter_result et_pb_newsletter_success"> <h2>Thanks for Subscribing! </h2> </div> <div class="et_pb_newsletter_fields"> <p class="et_pb_newsletter_field et_pb_contact_field_last et_pb_contact_field_last_tablet et_pb_contact_field_last_phone"> <label class="et_pb_contact_form_label" for="et_pb_signup_firstname" style="display: none;">First Name</label> <input id="et_pb_signup_firstname" class="input" type="text" placeholder="First Name" name="et_pb_signup_firstname"> </p> <p class="et_pb_newsletter_field et_pb_contact_field_last et_pb_contact_field_last_tablet et_pb_contact_field_last_phone"> <label class="et_pb_contact_form_label" for="et_pb_signup_lastname" style="display: none;">Last Name</label> <input id="et_pb_signup_lastname" class="input" type="text" placeholder="Last Name" name="et_pb_signup_lastname"> </p> <p class="et_pb_newsletter_field et_pb_contact_field_last et_pb_contact_field_last_tablet et_pb_contact_field_last_phone"> <label class="et_pb_contact_form_label" for="et_pb_signup_email" style="display: none;">Email</label> <input id="et_pb_signup_email" class="input" type="text" placeholder="Email" name="et_pb_signup_email"> </p> <p class="et_pb_newsletter_button_wrap"> <a class="et_pb_newsletter_button et_pb_button" href="#" data-icon=""> <span class="et_subscribe_loader"></span> <span class="et_pb_newsletter_button_text">Subscribe</span> </a> </p> </div> <input type="hidden" value="mailchimp" name="et_pb_signup_provider" /> <input type="hidden" value="09c823f29f" name="et_pb_signup_list_id" /> <input type="hidden" value="SDS Mailchimp" name="et_pb_signup_account_name" /> <input type="hidden" value="true" name="et_pb_signup_ip_address" /><input type="hidden" value="933f8773077547084d53c7651aeacbfc" name="et_pb_signup_checksum" /> </form> </div> </div> </div> </div> </div><div class="et_pb_section et_pb_section_2_tb_footer et_section_regular" > <div class="et_pb_row et_pb_row_1_tb_footer"> <div class="et_pb_column et_pb_column_4_4 et_pb_column_3_tb_footer et_pb_css_mix_blend_mode_passthrough et-last-child"> <div class="et_pb_module et_pb_code et_pb_code_0_tb_footer"> <div class="et_pb_code_inner"><script> jQuery(document).ready(function($){ $(".recent-section article").each(function(){ $(this).find(".entry-title, .post-meta, .post-content").wrapAll("<div class='right-content'></div>"); }) $(".featured-section article").each(function(){ $(this).find(".entry-title, .post-meta, .post-content").wrapAll("<div class='right-content'></div>"); }) }) </script></div> </div> </div> </div> </div><div class="et_pb_section et_pb_section_3_tb_footer et_pb_with_background et_section_regular" > <div class="et_pb_row et_pb_row_2_tb_footer"> <div class="et_pb_column et_pb_column_4_4 et_pb_column_4_tb_footer et_pb_css_mix_blend_mode_passthrough et-last-child"> <div class="et_pb_module et_pb_text et_pb_text_4_tb_footer et_pb_text_align_left et_pb_bg_layout_light"> <div class="et_pb_text_inner"><p>© Copyright 2024 SDS. All rights reserved.</p></div> </div> </div> </div> </div> </div> </footer> </div> </div> </div> <div id="um_upload_single" style="display:none;"></div> <div id="um_view_photo" style="display:none;"> <a href="javascript:void(0);" data-action="um_remove_modal" class="um-modal-close" aria-label="Close view photo modal"> <i class="um-faicon-times"></i> </a> <div class="um-modal-body photo"> <div class="um-modal-photo"></div> </div> </div> <script type="speculationrules"> {"prefetch":[{"source":"document","where":{"and":[{"href_matches":"\/*"},{"not":{"href_matches":["\/wp-*.php","\/wp-admin\/*","\/wp-content\/uploads\/*","\/wp-content\/*","\/wp-content\/plugins\/*","\/wp-content\/themes\/sds\/*","\/wp-content\/themes\/Divi\/*","\/*\\?(.+)"]}},{"not":{"selector_matches":"a[rel~=\"nofollow\"]"}},{"not":{"selector_matches":".no-prefetch, .no-prefetch a"}}]},"eagerness":"conservative"}]} </script> <script> ( function ( body ) { 'use strict'; body.className = body.className.replace( /\btribe-no-js\b/, 'tribe-js' ); } )( document.body ); </script> <script id="mcjs">!function(c,h,i,m,p){m=c.createElement(h),p=c.getElementsByTagName(h)[0],m.async=1,m.src=i,p.parentNode.insertBefore(m,p)}(document,"script","https://chimpstatic.com/mcjs-connected/js/users/f022d2c8deaf5c51859a6c3dc/f575cd9ed7fad4ab82cf2e0f5.js");</script><script> /* <![CDATA[ */var tribe_l10n_datatables = {"aria":{"sort_ascending":": activate to sort column ascending","sort_descending":": activate to sort column descending"},"length_menu":"Show _MENU_ entries","empty_table":"No data available in table","info":"Showing _START_ to _END_ of _TOTAL_ entries","info_empty":"Showing 0 to 0 of 0 entries","info_filtered":"(filtered from _MAX_ total entries)","zero_records":"No matching records found","search":"Search:","all_selected_text":"All items on this page were selected. ","select_all_link":"Select all pages","clear_selection":"Clear Selection.","pagination":{"all":"All","next":"Next","previous":"Previous"},"select":{"rows":{"0":"","_":": Selected %d rows","1":": Selected 1 row"}},"datepicker":{"dayNames":["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"],"dayNamesShort":["Sun","Mon","Tue","Wed","Thu","Fri","Sat"],"dayNamesMin":["S","M","T","W","T","F","S"],"monthNames":["January","February","March","April","May","June","July","August","September","October","November","December"],"monthNamesShort":["January","February","March","April","May","June","July","August","September","October","November","December"],"monthNamesMin":["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"],"nextText":"Next","prevText":"Prev","currentText":"Today","closeText":"Done","today":"Today","clear":"Clear"},"registration_prompt":"There is unsaved attendee information. Are you sure you want to continue?"};/* ]]> */ </script> <script> (function () { var c = document.body.className; c = c.replace(/woocommerce-no-js/, 'woocommerce-js'); document.body.className = c; })(); </script> <link rel='stylesheet' id='wc-stripe-blocks-checkout-style-css' href='https://systemdynamics.org/wp-content/plugins/woocommerce-gateway-stripe/build/upe-blocks.css?ver=7a015a6f0fabd17529b6' media='all' /> <link rel='stylesheet' id='wc-blocks-style-css' href='https://systemdynamics.org/wp-content/plugins/woocommerce/assets/client/blocks/wc-blocks.css?ver=wc-10.3.5' media='all' /> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/libs/select2/select2.full.min.js?ver=4.0.13" id="select2-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/the-events-calendar/common/build/js/user-agent.js?ver=da75d0bdea6dde3898df" id="tec-user-agent-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/woocommerce/assets/js/selectWoo/selectWoo.full.min.js?ver=1.0.9-wc.10.3.5" id="selectWoo-js" data-wp-strategy="defer"></script> <script id="wc-memberships-blocks-common-js-extra"> var wc_memberships_blocks_common = {"keywords":{"email":"Email","phone":"Phone","plan":"Plan","address":"Address","search_not_found":"We didn't find any members. Please try a different search or check for typos.","results_not_found":"No records found..."},"ajaxUrl":"https:\/\/systemdynamics.org\/wp-admin\/admin-ajax.php","restUrl":"https:\/\/systemdynamics.org\/wp-json\/","restNonce":"1092b0ec1d"}; </script> <script src="https://systemdynamics.org/wp-content/plugins/woocommerce-memberships/assets/js/frontend/wc-memberships-blocks-common.min.js?ver=1.27.3" id="wc-memberships-blocks-common-js"></script> <script id="wc-donation-frontend-script-js-extra"> var wcOrderScript = {"donationToOrder":{"action":"donation_to_order","nonce":"a2512f67c8","ajaxUrl":"https:\/\/systemdynamics.org\/wp-admin\/admin-ajax.php","is_roundOff":"","other_amount_placeholder":"Enter amount between %min% - %max%","is_checkout":false,"is_order_pay":false,"fees_type":"percentage"}}; </script> <script src="https://systemdynamics.org/wp-content/plugins/donation-for-woocommerce/assets/js/frontend.js?ver=3.9.7&t=15112025102336" id="wc-donation-frontend-script-js"></script> <script id="smush-detector-js-extra"> var smush_detector = {"ajax_url":"https:\/\/systemdynamics.org\/wp-admin\/admin-ajax.php","nonce":"001637b76a","is_mobile":"","data_store":{"type":"post-meta","data":{"post_id":2947}},"previous_data_version":"-1","previous_data_hash":"no-data"}; </script> <script src="https://systemdynamics.org/wp-content/plugins/wp-smush-pro/app/assets/js/smush-detector.min.js?ver=3.22.1" id="smush-detector-js"></script> <script id="mailchimp-woocommerce-js-extra"> var mailchimp_public_data = {"site_url":"https:\/\/systemdynamics.org","ajax_url":"https:\/\/systemdynamics.org\/wp-admin\/admin-ajax.php","disable_carts":"","subscribers_only":"","language":"en","allowed_to_set_cookies":"1"}; </script> <script src="https://systemdynamics.org/wp-content/plugins/mailchimp-for-woocommerce/public/js/mailchimp-woocommerce-public.min.js?ver=5.5.1.07" id="mailchimp-woocommerce-js"></script> <script id="wc-memberships-frontend-js-extra"> var wc_memberships_frontend = {"ajax_url":"https:\/\/systemdynamics.org\/wp-admin\/admin-ajax.php","max_file_size":"524288000","max_files":"1","mime_types":[{"title":"image","extensions":"jpg,jpeg,jpe,gif,png,bmp,tiff,tif,webp,avif,ico,heic,heif,heics,heifs"},{"title":"video","extensions":"asf,asx,wmv,wmx,wm,avi,divx,flv,mov,qt,mpeg,mpg,mpe,mp4,m4v,ogv,webm,mkv,3gp,3gpp,3g2,3gp2"},{"title":"text","extensions":"txt,asc,c,cc,h,srt,csv,tsv,ics,rtx,css,vtt"},{"title":"application","extensions":"dfxp,rtf,pdf,class,tar,zip,gz,gzip,rar,7z,psd,xcf,doc,pot,pps,ppt,wri,xla,xls,xlt,xlw,mdb,mpp,docx,docm,dotx,dotm,xlsx,xlsm,xlsb,xltx,xltm,xlam,pptx,pptm,ppsx,ppsm,potx,potm,ppam,sldx,sldm,onetoc,onetoc2,onetmp,onepkg,oxps,xps,odt,odp,ods,odg,odc,odb,odf,wp,wpd,key,numbers,pages"},{"title":"audio","extensions":"mp3,m4a,m4b,aac,ra,ram,wav,x-wav,ogg,oga,flac,mid,midi,wma,wax,mka"}],"nonces":{"profile_field_upload_file":"7c4952c86a","profile_field_remove_file":"e7b0d1d9cf","get_product_profile_fields":"673626b586"},"i18n":{"upload_error":"Error %1$s: %2$s"}}; </script> <script src="https://systemdynamics.org/wp-content/plugins/woocommerce-memberships/assets/js/frontend/wc-memberships-frontend.min.js?ver=1.27.3" id="wc-memberships-frontend-js"></script> <script src="https://systemdynamics.org/wp-content/themes/sds/js/navigation.js?ver=1.0.1" id="sds-navigation-js"></script> <script src="https://systemdynamics.org/wp-content/themes/sds/js/sponsor.js?ver=1.0.1" id="sponsors-sliderjquery-js"></script> <script src="https://systemdynamics.org/wp-content/themes/sds/js/slick.min.js?ver=1.0.1" id="slick-sponsor-js"></script> <script src="https://systemdynamics.org/wp-includes/js/comment-reply.min.js?ver=6.8.3" id="comment-reply-js" async data-wp-strategy="async"></script> <script id="divi-custom-script-js-extra"> var DIVI = {"item_count":"%d Item","items_count":"%d Items"}; var et_builder_utils_params = {"condition":{"diviTheme":true,"extraTheme":false},"scrollLocations":["app","top"],"builderScrollLocations":{"desktop":"app","tablet":"app","phone":"app"},"onloadScrollLocation":"app","builderType":"fe"}; var et_frontend_scripts = {"builderCssContainerPrefix":"#et-boc","builderCssLayoutPrefix":"#et-boc .et-l"}; var et_pb_custom = {"ajaxurl":"https:\/\/systemdynamics.org\/wp-admin\/admin-ajax.php","images_uri":"https:\/\/systemdynamics.org\/wp-content\/themes\/Divi\/images","builder_images_uri":"https:\/\/systemdynamics.org\/wp-content\/themes\/Divi\/includes\/builder\/images","et_frontend_nonce":"876f3d3dc5","subscription_failed":"Please, check the fields below to make sure you entered the correct information.","et_ab_log_nonce":"4f3dd0c6e3","fill_message":"Please, fill in the following fields:","contact_error_message":"Please, fix the following errors:","invalid":"Invalid email","captcha":"Captcha","prev":"Prev","previous":"Previous","next":"Next","wrong_captcha":"You entered the wrong number in captcha.","wrong_checkbox":"Checkbox","ignore_waypoints":"no","is_divi_theme_used":"1","widget_search_selector":".widget_search","ab_tests":[],"is_ab_testing_active":"","page_id":"2947","unique_test_id":"","ab_bounce_rate":"5","is_cache_plugin_active":"yes","is_shortcode_tracking":"","tinymce_uri":"https:\/\/systemdynamics.org\/wp-content\/themes\/Divi\/includes\/builder\/frontend-builder\/assets\/vendors","accent_color":"#2ea3f2","waypoints_options":[]}; var et_pb_box_shadow_elements = []; </script> <script src="https://systemdynamics.org/wp-content/themes/Divi/js/scripts.min.js?ver=4.27.4" id="divi-custom-script-js"></script> <script src="https://systemdynamics.org/wp-content/themes/Divi/core/admin/js/es6-promise.auto.min.js?ver=4.27.4" id="es6-promise-js"></script> <script src="https://www.google.com/recaptcha/api.js?render=6LdBBKgpAAAAALp_LXhJRp1vxcU0g1yasjzUm8bp&ver=4.27.4" id="et-recaptcha-v3-js"></script> <script id="et-core-api-spam-recaptcha-js-extra"> var et_core_api_spam_recaptcha = {"site_key":"6LdBBKgpAAAAALp_LXhJRp1vxcU0g1yasjzUm8bp","page_action":{"action":"2017_proceedings"}}; </script> <script src="https://systemdynamics.org/wp-content/themes/Divi/core/admin/js/recaptcha.js?ver=4.27.4" id="et-core-api-spam-recaptcha-js"></script> <script src="https://systemdynamics.org/wp-content/themes/Divi/includes/builder/feature/dynamic-assets/assets/js/jquery.fitvids.js?ver=4.27.4" id="fitvids-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/woocommerce/assets/js/sourcebuster/sourcebuster.min.js?ver=10.3.5" id="sourcebuster-js-js"></script> <script id="wc-order-attribution-js-extra"> var wc_order_attribution = {"params":{"lifetime":1.0e-5,"session":30,"base64":false,"ajaxurl":"https:\/\/systemdynamics.org\/wp-admin\/admin-ajax.php","prefix":"wc_order_attribution_","allowTracking":true},"fields":{"source_type":"current.typ","referrer":"current_add.rf","utm_campaign":"current.cmp","utm_source":"current.src","utm_medium":"current.mdm","utm_content":"current.cnt","utm_id":"current.id","utm_term":"current.trm","utm_source_platform":"current.plt","utm_creative_format":"current.fmt","utm_marketing_tactic":"current.tct","session_entry":"current_add.ep","session_start_time":"current_add.fd","session_pages":"session.pgs","session_count":"udata.vst","user_agent":"udata.uag"}}; </script> <script src="https://systemdynamics.org/wp-content/plugins/woocommerce/assets/js/frontend/order-attribution.min.js?ver=10.3.5" id="wc-order-attribution-js"></script> <script src="https://systemdynamics.org/wp-content/themes/Divi/core/admin/js/common.js?ver=4.27.4" id="et-core-common-js"></script> <script src='https://systemdynamics.org/wp-content/plugins/the-events-calendar/common/build/js/underscore-before.js'></script> <script src="https://systemdynamics.org/wp-includes/js/underscore.min.js?ver=1.13.7" id="underscore-js"></script> <script src='https://systemdynamics.org/wp-content/plugins/the-events-calendar/common/build/js/underscore-after.js'></script> <script id="wp-util-js-extra"> var _wpUtilSettings = {"ajax":{"url":"\/wp-admin\/admin-ajax.php"}}; </script> <script src="https://systemdynamics.org/wp-includes/js/wp-util.min.js?ver=6.8.3" id="wp-util-js"></script> <script src="https://systemdynamics.org/wp-includes/js/dist/hooks.min.js?ver=4d63a3d491d11ffd8ac6" id="wp-hooks-js"></script> <script src="https://systemdynamics.org/wp-includes/js/dist/i18n.min.js?ver=5e580eb46a90c2b997e6" id="wp-i18n-js"></script> <script id="wp-i18n-js-after"> wp.i18n.setLocaleData( { 'text direction\u0004ltr': [ 'ltr' ] } ); </script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/libs/tipsy/tipsy.min.js?ver=1.0.0a" id="um_tipsy-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/libs/um-confirm/um-confirm.min.js?ver=1.0" id="um_confirm-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/libs/pickadate/picker.min.js?ver=3.6.2" id="um_datetime-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/libs/pickadate/picker.date.min.js?ver=3.6.2" id="um_datetime_date-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/libs/pickadate/picker.time.min.js?ver=3.6.2" id="um_datetime_time-js"></script> <script id="um_common-js-extra"> var um_common_variables = {"locale":"en_US"}; var um_common_variables = {"locale":"en_US"}; </script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/js/common.min.js?ver=2.10.6" id="um_common-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/libs/cropper/cropper.min.js?ver=1.6.1" id="um_crop-js"></script> <script id="um_frontend_common-js-extra"> var um_frontend_common_variables = []; </script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/js/common-frontend.min.js?ver=2.10.6" id="um_frontend_common-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/js/um-modal.min.js?ver=2.10.6" id="um_modal-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/libs/jquery-form/jquery-form.min.js?ver=2.10.6" id="um_jquery_form-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/libs/fileupload/fileupload.js?ver=2.10.6" id="um_fileupload-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/js/um-functions.min.js?ver=2.10.6" id="um_functions-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/js/um-responsive.min.js?ver=2.10.6" id="um_responsive-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/js/um-conditional.min.js?ver=2.10.6" id="um_conditional-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/libs/select2/i18n/en.js?ver=4.0.13" id="um_select2_locale-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/libs/raty/um-raty.min.js?ver=2.6.0" id="um_raty-js"></script> <script id="um_scripts-js-extra"> var um_scripts = {"max_upload_size":"524288000","nonce":"1edf2f5d2a"}; </script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/js/um-scripts.min.js?ver=2.10.6" id="um_scripts-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/js/um-profile.min.js?ver=2.10.6" id="um_profile-js"></script> <script src="https://systemdynamics.org/wp-content/plugins/ultimate-member/assets/js/um-account.min.js?ver=2.10.6" id="um_account-js"></script> <script id="wapf-frontend-js-extra"> var wapf_config = {"ajax":"https:\/\/systemdynamics.org\/wp-admin\/admin-ajax.php","page_type":"other","display_options":{"format":"%1$s%2$s","symbol":"$","decimals":2,"decimal":".","thousand":","},"slider_support":"1"}; </script> <script src="https://systemdynamics.org/wp-content/plugins/advanced-product-fields-for-woocommerce-pro/assets/js/frontend.min.js?ver=2.5" id="wapf-frontend-js"></script> <script id="gt_widget_script_71359047-js-before"> window.gtranslateSettings = /* document.write */ window.gtranslateSettings || {};window.gtranslateSettings['71359047'] = {"default_language":"en","languages":["am","ar","hy","bn","zh-CN","zh-TW","nl","en","fr","de","el","ha","hi","id","it","ja","ko","ms","fa","pt","pa","ru","es","sw","ta","tr","yo"],"url_structure":"none","flag_style":"2d","flag_size":24,"wrapper_selector":"#gt-wrapper-71359047","alt_flags":[],"switcher_open_direction":"top","switcher_horizontal_position":"inline","switcher_text_color":"#ffffff","switcher_arrow_color":"#666","switcher_border_color":"#ccc","switcher_background_color":"#fff","switcher_background_shadow_color":"#efefef","switcher_background_hover_color":"#fff","dropdown_text_color":"#000","dropdown_hover_color":"#fff","dropdown_background_color":"#eee","flags_location":"\/wp-content\/plugins\/gtranslate\/flags\/"}; </script><script src="https://systemdynamics.org/wp-content/plugins/gtranslate/js/dwf.js?ver=6.8.3" data-no-optimize="1" data-no-minify="1" data-gt-orig-url="/2017-proceedings/" data-gt-orig-domain="systemdynamics.org" data-gt-widget-id="71359047" defer></script><script id="wc-cart-fragments-js-extra"> var wc_cart_fragments_params = {"ajax_url":"\/wp-admin\/admin-ajax.php","wc_ajax_url":"\/?wc-ajax=%%endpoint%%","cart_hash_key":"wc_cart_hash_0482a334019bf8abaf9c85f17483eee4","fragment_name":"wc_fragments_0482a334019bf8abaf9c85f17483eee4","request_timeout":"5000"}; </script> <script src="https://systemdynamics.org/wp-content/plugins/woocommerce/assets/js/frontend/cart-fragments.min.js?ver=10.3.5" id="wc-cart-fragments-js" defer data-wp-strategy="defer"></script> <script type="text/javascript" data-gtm-ecommerce-woo-scripts> window.dataLayer = window.dataLayer || []; (function(dataLayer, jQuery) { window.gtm_ecommerce_pro.items.byProductId = { ...window.gtm_ecommerce_pro.items.byProductId, ...[] }; if (typeof wp !== 'undefined' && wp.hooks && wp.hooks.addAction) { wp.hooks.addAction('experimental__woocommerce_blocks-cart-remove-item', 'gtm-ecommerce-woo', function(details) { if (details.product && details.product.id) { let item = gtm_ecommerce_pro.getItemByProductId(details.product.id); if (0 === Object.keys(item).length) { return; } item.quantity = 1; let event = {"event":"remove_from_cart","ecommerce":{"currency":"USD","items":null,"value":0}}; dataLayer.push({ ...event, 'ecommerce': { ...event.ecommerce, 'value': item.price, 'items': [item] } }); } }); } jQuery(document).on('click', '.remove', function(ev) { let product_id = jQuery(ev.currentTarget).attr('data-product_id'); let variation_id = jQuery(ev.currentTarget).attr('data-variation_id'); if (undefined === product_id && undefined === variation_id) { return; } let item = null; if (variation_id) { item = gtm_ecommerce_pro.getItemByProductId(variation_id); } else { item = gtm_ecommerce_pro.getItemByProductId(product_id); } if (0 === Object.keys(item).length) { return; } item.quantity = 1; let event = {"event":"remove_from_cart","ecommerce":{"currency":"USD","items":null,"value":0}}; dataLayer.push({ ...event, 'ecommerce': { ...event.ecommerce, 'value': item.price, 'items': [item] } }); }); jQuery(document).on('submit', '.woocommerce-cart-form', function(ev) { jQuery('input[name$="[qty]"]', ev.currentTarget).each(function(i, el) { var previousValue = el.defaultValue || 0; var currentValue = el.value || 0; var diff = currentValue - previousValue; if (diff < 0) { var quantity = Math.abs(diff); var element = jQuery(el).parents('.cart_item').find('[data-product_id]'); var productId = element.attr('data-variation_id') ?? element.attr('data-product_id'); var item = gtm_ecommerce_pro.getItemByProductId(productId); item.quantity = quantity; let event = {"event":"remove_from_cart","ecommerce":{"currency":"USD","items":null,"value":0}}; dataLayer.push({ ...event, 'ecommerce': { ...event.ecommerce, 'value': (item.price * quantity), 'items': [item] } }); } }); }); })(dataLayer, jQuery);</script> <style id="et-builder-module-design-tb-44-tb-47-2947-cached-inline-styles">.et-db #et-boc .et-l .et_pb_module input.et_pb_s{border:none!important}.et-db #et-boc .et-l .et_pb_module input.et_pb_s{border:none!important}</style><style id="et-builder-module-design-tb-44-tb-47-deferred-2947-cached-inline-styles">.et_pb_section_0_tb_header.et_pb_section{padding-bottom:3px;background-color:#000000!important}.et_pb_row_0_tb_header.et_pb_row{padding-top:51px!important;padding-bottom:0px!important;margin-top:-95px!important;margin-right:auto!important;margin-left:auto!important;padding-top:51px;padding-bottom:0px}.et_pb_row_0_tb_header,body #page-container .et-db #et-boc .et-l .et_pb_row_0_tb_header.et_pb_row,body.et_pb_pagebuilder_layout.single #page-container #et-boc .et-l .et_pb_row_0_tb_header.et_pb_row,body.et_pb_pagebuilder_layout.single.et_full_width_page #page-container #et-boc .et-l .et_pb_row_0_tb_header.et_pb_row,.et_pb_row_1_tb_header,body #page-container .et-db #et-boc .et-l .et_pb_row_1_tb_header.et_pb_row,body.et_pb_pagebuilder_layout.single #page-container #et-boc .et-l .et_pb_row_1_tb_header.et_pb_row,body.et_pb_pagebuilder_layout.single.et_full_width_page #page-container #et-boc .et-l .et_pb_row_1_tb_header.et_pb_row{width:100%;max-width:1245px}.et_pb_menu_0_tb_header.et_pb_menu,.et_pb_menu_1_tb_header.et_pb_menu{background-color:#ffffff}.et_pb_menu_0_tb_header{margin-right:-1px!important}.et_pb_menu_0_tb_header.et_pb_menu .nav li ul,.et_pb_menu_0_tb_header.et_pb_menu .et_mobile_menu,.et_pb_menu_0_tb_header.et_pb_menu .et_mobile_menu ul,.et_pb_menu_1_tb_header.et_pb_menu .et_mobile_menu,.et_pb_menu_1_tb_header.et_pb_menu .et_mobile_menu ul{background-color:#ffffff!important}.et_pb_menu_0_tb_header .et_pb_menu_inner_container>.et_pb_menu__logo-wrap,.et_pb_menu_0_tb_header .et_pb_menu__logo-slot,.et_pb_menu_1_tb_header .et_pb_menu_inner_container>.et_pb_menu__logo-wrap,.et_pb_menu_1_tb_header .et_pb_menu__logo-slot{width:auto;max-width:100%}.et_pb_menu_0_tb_header .et_pb_menu_inner_container>.et_pb_menu__logo-wrap .et_pb_menu__logo img,.et_pb_menu_0_tb_header .et_pb_menu__logo-slot .et_pb_menu__logo-wrap img,.et_pb_menu_1_tb_header .et_pb_menu_inner_container>.et_pb_menu__logo-wrap .et_pb_menu__logo img,.et_pb_menu_1_tb_header .et_pb_menu__logo-slot .et_pb_menu__logo-wrap img{height:auto;max-height:none}.et_pb_menu_0_tb_header .mobile_nav .mobile_menu_bar:before,.et_pb_menu_0_tb_header .et_pb_menu__icon.et_pb_menu__search-button,.et_pb_menu_0_tb_header .et_pb_menu__icon.et_pb_menu__close-search-button,.et_pb_menu_0_tb_header .et_pb_menu__icon.et_pb_menu__cart-button,.et_pb_menu_1_tb_header .mobile_nav .mobile_menu_bar:before,.et_pb_menu_1_tb_header .et_pb_menu__icon.et_pb_menu__search-button,.et_pb_menu_1_tb_header .et_pb_menu__icon.et_pb_menu__close-search-button,.et_pb_menu_1_tb_header .et_pb_menu__icon.et_pb_menu__cart-button{color:#2ea3f2}.et_pb_search_0_tb_header input.et_pb_searchsubmit{color:#FFFFFF!important;border-radius:0;background-color:#A31F34!important;border-color:#A31F34!important}.et_pb_search_0_tb_header.et_pb_search,.et_pb_search_0_tb_header input.et_pb_s{border-radius:0px 0px 0px 0px;overflow:hidden}.et_pb_search_0_tb_header.et_pb_search{border-color:#A31F34}.et_pb_search_0_tb_header{overflow-x:hidden;overflow-y:hidden;margin-bottom:5px!important}.et_pb_search_0_tb_header input.et_pb_s{padding-top:0.715em!important;padding-right:0.715em!important;padding-bottom:0.715em!important;padding-left:0.715em!important;border:0!important;border-color:#A31F34!important;height:auto;min-height:0}.et_pb_search_0_tb_header form input.et_pb_s{background-color:RGBA(255,255,255,0);color:#FFFFFF}.et_pb_search_0_tb_header form input.et_pb_s:focus{background-color:rgba(163,31,52,0.6);color:#FFFFFF}.et_pb_search_0_tb_header form input.et_pb_s::-webkit-input-placeholder{color:#FFFFFF!important}.et_pb_search_0_tb_header form input.et_pb_s::-moz-placeholder{color:#FFFFFF!important}.et_pb_search_0_tb_header form input.et_pb_s:-ms-input-placeholder{color:#FFFFFF!important}.et_pb_section_1_tb_header.et_pb_section{padding-top:0px;padding-bottom:6px}.et_pb_menu_1_tb_header.et_pb_menu ul li a{font-family:'Nunito',Helvetica,Arial,Lucida,sans-serif;color:#FFFFFF!important}.et_pb_menu_1_tb_header.et_pb_menu .nav li ul{background-color:gcid-8b75e835-98b6-43a1-a703-0cdbcd57b70e!important}.et_pb_section_0_tb_footer.et_pb_section{background-color:rgba(0,0,0,0)!important}.et_pb_section_1_tb_footer{min-height:428px}.et_pb_section_1_tb_footer.et_pb_section{padding-top:70px;padding-right:15px;padding-bottom:50px;padding-left:15px;background-color:#f5f5f6!important}.et_pb_row_0_tb_footer.et_pb_row{padding-top:0px!important;padding-top:0px}.et_pb_row_0_tb_footer,body #page-container .et-db #et-boc .et-l .et_pb_row_0_tb_footer.et_pb_row,body.et_pb_pagebuilder_layout.single #page-container #et-boc .et-l .et_pb_row_0_tb_footer.et_pb_row,body.et_pb_pagebuilder_layout.single.et_full_width_page #page-container #et-boc .et-l .et_pb_row_0_tb_footer.et_pb_row,.et_pb_row_2_tb_footer,body #page-container .et-db #et-boc .et-l .et_pb_row_2_tb_footer.et_pb_row,body.et_pb_pagebuilder_layout.single #page-container #et-boc .et-l .et_pb_row_2_tb_footer.et_pb_row,body.et_pb_pagebuilder_layout.single.et_full_width_page #page-container #et-boc .et-l .et_pb_row_2_tb_footer.et_pb_row{width:100%;max-width:1245px}.et_pb_text_0_tb_footer,ul.et_pb_social_media_follow_0_tb_footer,.et_pb_text_3_tb_footer{margin-bottom:0px!important}.et_pb_text_1_tb_footer.et_pb_text{color:#000000!important}.et_pb_menu_0_tb_footer.et_pb_menu{background-color:#ffffff}.et_pb_menu_0_tb_footer.et_pb_menu .nav li ul,.et_pb_menu_0_tb_footer.et_pb_menu .et_mobile_menu,.et_pb_menu_0_tb_footer.et_pb_menu .et_mobile_menu ul{background-color:#ffffff!important}.et_pb_menu_0_tb_footer .et_pb_menu_inner_container>.et_pb_menu__logo-wrap,.et_pb_menu_0_tb_footer .et_pb_menu__logo-slot{width:auto;max-width:100%}.et_pb_menu_0_tb_footer .et_pb_menu_inner_container>.et_pb_menu__logo-wrap .et_pb_menu__logo img,.et_pb_menu_0_tb_footer .et_pb_menu__logo-slot .et_pb_menu__logo-wrap img{height:auto;max-height:none}.et_pb_menu_0_tb_footer .mobile_nav .mobile_menu_bar:before,.et_pb_menu_0_tb_footer .et_pb_menu__icon.et_pb_menu__search-button,.et_pb_menu_0_tb_footer .et_pb_menu__icon.et_pb_menu__close-search-button,.et_pb_menu_0_tb_footer .et_pb_menu__icon.et_pb_menu__cart-button{color:#2ea3f2}.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_description h2,.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_description h1.et_pb_module_header,.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_description h3.et_pb_module_header,.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_description h4.et_pb_module_header,.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_description h5.et_pb_module_header,.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_description h6.et_pb_module_header{font-size:21px!important;color:#666666!important}.et_pb_signup_0_tb_footer.et_pb_subscribe p,.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_description,.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_form{line-height:1em}.et_pb_signup_0_tb_footer.et_pb_contact_field .et_pb_contact_field_options_title,.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_form .input,.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_form .input[type=checkbox]+label,.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_form .input[type=radio]+label{font-size:14px;line-height:1.4em}.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_form .input::-webkit-input-placeholder{font-size:14px;line-height:1.4em}.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_form .input::-moz-placeholder{font-size:14px;line-height:1.4em}.et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_form .input:-ms-input-placeholder{font-size:14px;line-height:1.4em}body #page-container .et_pb_section .et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_button.et_pb_button{color:#FFFFFF!important;border-width:0px!important;border-radius:2px;font-size:18px;background-color:#a31f34;margin-right:100px!important}body #page-container .et_pb_section .et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_button.et_pb_button,body #page-container .et_pb_section .et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_button.et_pb_button:hover{padding-right:1em!important;padding-left:1em!important}body #page-container .et_pb_section .et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_button.et_pb_button:before,body #page-container .et_pb_section .et_pb_signup_0_tb_footer.et_pb_subscribe .et_pb_newsletter_button.et_pb_button:after{display:none!important}.et_pb_section_2_tb_footer.et_pb_section{padding-top:0px;padding-bottom:0px}.et_pb_row_1_tb_footer.et_pb_row{padding-top:0px!important;padding-bottom:0px!important;padding-top:0px;padding-bottom:0px}.et_pb_section_3_tb_footer.et_pb_section{padding-top:0px;padding-bottom:0px;background-color:#353535!important}.et_pb_row_2_tb_footer.et_pb_row{padding-top:15px!important;padding-bottom:15px!important;padding-top:15px;padding-bottom:15px}.et_pb_text_4_tb_footer.et_pb_text{color:#FFFFFF!important}.et_pb_social_media_follow_network_0_tb_footer a.icon{background-image:linear-gradient(75deg,#b11e4d 0%,#db4d6f 100%)!important;background-color:#3b5998!important}.et_pb_social_media_follow_network_1_tb_footer a.icon{background-image:linear-gradient(180deg,#b11e4d 0%,#db4d6f 100%)!important;background-color:#ea2c59!important}.et_pb_social_media_follow_network_2_tb_footer a.icon{background-image:linear-gradient(180deg,#b11e4d 0%,#db4d6f 100%)!important;background-color:#000000!important}.et_pb_social_media_follow_network_3_tb_footer a.icon{background-image:linear-gradient(180deg,#b11e4d 0%,#db4d6f 100%)!important;background-color:#a82400!important}.et_pb_social_media_follow_network_4_tb_footer a.icon{background-image:linear-gradient(180deg,#b11e4d 0%,#db4d6f 100%)!important;background-color:#007bb6!important}.et_pb_row_0,body #page-container .et-db #et-boc .et-l .et_pb_row_0.et_pb_row,body.et_pb_pagebuilder_layout.single #page-container #et-boc .et-l .et_pb_row_0.et_pb_row,body.et_pb_pagebuilder_layout.single.et_full_width_page #page-container #et-boc .et-l .et_pb_row_0.et_pb_row{max-width:1245px}.et_pb_text_0.et_pb_text{color:#000000!important}.et_pb_text_0{font-family:'Nunito',Helvetica,Arial,Lucida,sans-serif;margin-top:40px!important}.et_pb_text_0 h2{font-family:'Roboto',Helvetica,Arial,Lucida,sans-serif;font-weight:700;text-transform:uppercase}.et_pb_text_0 h3{font-family:'Nunito',Helvetica,Arial,Lucida,sans-serif;font-size:24px}@media only screen and (max-width:980px){.et_pb_column_0{padding-top:20px;padding-right:20px;padding-bottom:20px;padding-left:20px}}</style> <script type="text/javascript"> jQuery(function($) { jQuery( '.dropdown_product_cat' ).on( 'change', function() { if ( jQuery(this).val() != '' ) { var this_page = ''; var home_url = 'https://systemdynamics.org/'; if ( home_url.indexOf( '?' ) > 0 ) { this_page = home_url + '&product_cat=' + jQuery(this).val(); } else { this_page = home_url + '?product_cat=' + jQuery(this).val(); } location.href = this_page; } else { location.href = 'https://systemdynamics.org/shop/'; } }); if ( jQuery().selectWoo ) { var wc_product_cat_select = function() { jQuery( '.dropdown_product_cat' ).selectWoo( { placeholder: 'Select a category', minimumResultsForSearch: 5, width: '100%', allowClear: true, language: { noResults: function() { return 'No matches found'; } } } ); }; wc_product_cat_select(); } }); </script> <script> WAPF.Filter.add('wapf/pricing/base',function(price, data) { if(WAPF.Util.currentProductType(data.parent) === 'variable-subscription') { var v = WAPF.Util.getVariation(data.parent); if(v) price = v.display_price; } return price; }); </script> <div class="wttw" aria-hidden="true"><div class="wapf-ttp"></div></div> </body> </html>