{"id":69121,"date":"2026-04-22T13:30:30","date_gmt":"2026-04-22T13:30:30","guid":{"rendered":"https:\/\/www.iseg.ulisboa.pt\/?post_type=event&#038;p=69121"},"modified":"2026-04-22T13:30:52","modified_gmt":"2026-04-22T13:30:52","slug":"iseg-research-seminars-26-olga-chiappinelli","status":"publish","type":"event","link":"https:\/\/www.iseg.ulisboa.pt\/en\/event\/iseg-research-seminars-26-olga-chiappinelli\/","title":{"rendered":"ISEG Research Seminars \u201926 | Olga Chiappinelli"},"content":{"rendered":"<p>On Wednesday\u00a0<strong>29 April<\/strong>, a session of the ISEG Research Seminars will take place from 13.00 to 14.00. The guest speaker will be\u00a0<strong><strong><strong>Olga Chiappinelli<\/strong><\/strong><\/strong>.<\/p>\n\n\n\n<p>The&nbsp;<a href=\"https:\/\/www.iseg.ulisboa.pt\/en\/2026\/02\/iseg-research-seminars26\/\" target=\"_blank\" rel=\"noreferrer noopener\">ISEG Research Seminars<\/a>&nbsp;are held every week on Wednesdays, with the participation of professors from ISEG, as well as from other Portuguese and international educational institutions.<\/p>\n\n\n\n<p><strong>Title<\/strong><\/p>\n\n\n\n<p>The Greener, the Better? Evidence from Government Contractors<\/p>\n\n\n\n<p><strong>Abstract<\/strong><\/p>\n\n\n\n<p>Governments support the green transition through green public procurement. Using US data, this paper provides the first empirical analysis of the causal effects of green contracts on corporate greenhouse gas emissions and economic performance. We focus on an affirmative programme for sustainable products, which represents one-sixth of the total federal procurement budget, and publicly traded firms, which account for one-third of total US emissions. Our results show that securing green contracts reduces emissions relative to firm size and increases productivity. We find no evidence that the programme selects greener firms, nor that green public procurement sales crowd out private sales.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"630\" src=\"https:\/\/www.iseg.ulisboa.pt\/wp-content\/uploads\/ISEG_Research_Seminars26_MetaTag-2.png\" alt=\"\" class=\"wp-image-67937\" srcset=\"https:\/\/www.iseg.ulisboa.pt\/wp-content\/uploads\/ISEG_Research_Seminars26_MetaTag-2.png 1200w, https:\/\/www.iseg.ulisboa.pt\/wp-content\/uploads\/ISEG_Research_Seminars26_MetaTag-2-300x158.png 300w, https:\/\/www.iseg.ulisboa.pt\/wp-content\/uploads\/ISEG_Research_Seminars26_MetaTag-2-18x9.png 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>","protected":false},"excerpt":{"rendered":"A session of the ISEG Research Seminars will take place on Wednesday, April 29, between 1pm and 2pm. The guest speaker will be Olga Chiappinelli. The ISEG Research Seminars take place weekly, on Wednesdays, [...]","protected":false},"featured_media":67666,"template":"","topic":[3424],"event_type":[1155],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ISEG Research Seminars \u201926 | Olga Chiappinelli - ISEG<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.iseg.ulisboa.pt\/en\/event\/iseg-research-seminars-26-olga-chiappinelli\/\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.iseg.ulisboa.pt\/en\/event\/iseg-research-seminars-26-olga-chiappinelli\/\",\"url\":\"https:\/\/www.iseg.ulisboa.pt\/en\/event\/iseg-research-seminars-26-olga-chiappinelli\/\",\"name\":\"ISEG Research Seminars \u201926 | Olga Chiappinelli - ISEG\",\"isPartOf\":{\"@id\":\"https:\/\/www.iseg.ulisboa.pt\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.iseg.ulisboa.pt\/en\/event\/iseg-research-seminars-26-olga-chiappinelli\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.iseg.ulisboa.pt\/en\/event\/iseg-research-seminars-26-olga-chiappinelli\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.iseg.ulisboa.pt\/wp-content\/uploads\/ISEG_Research_Seminars26_Evento.png\",\"datePublished\":\"2026-04-22T13:30:30+00:00\",\"dateModified\":\"2026-04-22T13:30:52+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.iseg.ulisboa.pt\/en\/event\/iseg-research-seminars-26-olga-chiappinelli\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.iseg.ulisboa.pt\/en\/event\/iseg-research-seminars-26-olga-chiappinelli\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.iseg.ulisboa.pt\/en\/event\/iseg-research-seminars-26-olga-chiappinelli\/#primaryimage\",\"url\":\"https:\/\/www.iseg.ulisboa.pt\/wp-content\/uploads\/ISEG_Research_Seminars26_Evento.png\",\"contentUrl\":\"https:\/\/www.iseg.ulisboa.pt\/wp-content\/uploads\/ISEG_Research_Seminars26_Evento.png\",\"width\":1200,\"height\":630},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.iseg.ulisboa.pt\/en\/event\/iseg-research-seminars-26-olga-chiappinelli\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.iseg.ulisboa.pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"ISEG Research Seminars \u201926 | Olga Chiappinelli\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.iseg.ulisboa.pt\/en\/#website\",\"url\":\"https:\/\/www.iseg.ulisboa.pt\/en\/\",\"name\":\"ISEG\",\"description\":\"Lisbon School of Economics &amp; 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O orador convidado ser\u00e1\u00a0Olga Chiappinelli. Os&nbsp;Semin\u00e1rios ISEG Research&nbsp;decorrem semanalmente, \u00e0s quartas-feiras,&nbsp;[...]","_links":{"self":[{"href":"https:\/\/www.iseg.ulisboa.pt\/en\/wp-json\/wp\/v2\/event\/69121"}],"collection":[{"href":"https:\/\/www.iseg.ulisboa.pt\/en\/wp-json\/wp\/v2\/event"}],"about":[{"href":"https:\/\/www.iseg.ulisboa.pt\/en\/wp-json\/wp\/v2\/types\/event"}],"version-history":[{"count":0,"href":"https:\/\/www.iseg.ulisboa.pt\/en\/wp-json\/wp\/v2\/event\/69121\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.iseg.ulisboa.pt\/en\/wp-json\/wp\/v2\/media\/67666"}],"wp:attachment":[{"href":"https:\/\/www.iseg.ulisboa.pt\/en\/wp-json\/wp\/v2\/media?parent=69121"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.iseg.ulisboa.pt\/en\/wp-json\/wp\/v2\/topic?post=69121"},{"taxonomy":"event_type","embeddable":true,"href":"https:\/\/www.iseg.ulisboa.pt\/en\/wp-json\/wp\/v2\/event_type?post=69121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}