{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,18]],"date-time":"2025-06-18T04:29:14Z","timestamp":1750220954403,"version":"3.41.0"},"publisher-location":"New York, NY, USA","reference-count":10,"publisher":"ACM","license":[{"start":{"date-parts":[[2019,6,24]],"date-time":"2019-06-24T00:00:00Z","timestamp":1561334400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.acm.org\/publications\/policies\/copyright_policy#Background"}],"content-domain":{"domain":["dl.acm.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2019,6,24]]},"DOI":"10.1145\/3330430.3333654","type":"proceedings-article","created":{"date-parts":[[2019,7,31]],"date-time":"2019-07-31T13:48:49Z","timestamp":1564580929000},"page":"1-4","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Impact of Free-Certificate Coupons on Learner Behavior in Online Courses"],"prefix":"10.1145","author":[{"given":"Joshua","family":"Littenberg-Tobias","sequence":"first","affiliation":[{"name":"MIT, Cambridge (MA), USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jos\u00e9 A.","family":"Ruip\u00e9rez-Valiente","sequence":"additional","affiliation":[{"name":"MIT, Cambridge (MA), USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Justin","family":"Reich","sequence":"additional","affiliation":[{"name":"MIT, Cambridge (MA), USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2019,6,24]]},"reference":[{"key":"e_1_3_2_1_1_1","first-page":"560","article-title":"Tuition elasticity of the demand for higher education among current students: A pricing model","volume":"66","author":"Bryan Glenn A","year":"1995","journal-title":"The Journal of Higher Education"},{"volume-title":"A comparison of learner intent and behaviour in live and archived MOOCs. The International Review of Research in Open and Distance Learning 15","year":"2014","author":"Campbell Jennifer","key":"e_1_3_2_1_2_1"},{"volume-title":"HarvardX and MITx: Four years of open online courses--fall 2012-summer","year":"2016","author":"Chuang Isaac","key":"e_1_3_2_1_3_1"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_4_1","DOI":"10.1257\/app.6.4.251"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_5_1","DOI":"10.1037\/0021-9010.75.6.728"},{"key":"e_1_3_2_1_6_1","first-page":"624","article-title":"Student price response in higher education: An update to Leslie and Brinkman","volume":"68","author":"Heller Donald E","year":"1997","journal-title":"The Journal of Higher Education"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_7_1","DOI":"10.1111\/ecoj.12297"},{"key":"e_1_3_2_1_8_1","first-page":"181","article-title":"Student price response in higher education: The student demand studies","volume":"58","author":"Leslie Larry L","year":"1987","journal-title":"The Journal of Higher Education"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_9_1","DOI":"10.1145\/3051457.3053980"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_10_1","DOI":"10.1001\/jama.2014.3485"}],"event":{"acronym":"L@S '19","name":"L@S '19: Sixth (2019) ACM Conference on Learning @ Scale","location":"Chicago IL USA"},"container-title":["Proceedings of the Sixth (2019) ACM Conference on Learning @ Scale"],"original-title":[],"link":[{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/3330430.3333654","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/dl.acm.org\/doi\/pdf\/10.1145\/3330430.3333654","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,17]],"date-time":"2025-06-17T23:54:03Z","timestamp":1750204443000},"score":1,"resource":{"primary":{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/3330430.3333654"}},"subtitle":["Results from Two Case Studies"],"short-title":[],"issued":{"date-parts":[[2019,6,24]]},"references-count":10,"alternative-id":["10.1145\/3330430.3333654","10.1145\/3330430"],"URL":"https:\/\/doi.org\/10.1145\/3330430.3333654","relation":{},"subject":[],"published":{"date-parts":[[2019,6,24]]},"assertion":[{"value":"2019-06-24","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}