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Promotional Reviews : An Empirical Investigation of Online Review Manipulation
Mayzlin, Dina - 2012
Online reviews could, in principle, greatly improve consumers' ability to evaluate products. However, the authenticity of online user reviews remains a concern; firms have an incentive to manufacture positive reviews for their own products and negative reviews for their rivals. In this paper, we...
Persistent link: https://www.econbiz.de/10012460324
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Measure for Measure : The relationship between measures of instructional practice in middle school English Language Arts and teachers' value-added scores
Grossman, Pam - 2010
any, differentiate teachers with high impact on student achievement in middle school English Language Arts from those with …
Persistent link: https://www.econbiz.de/10012462638
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The Return to English in a Non-English Speaking Country : Russian Immigrants and Native Israelis in Israel
Lang, Kevin - 2006
. Language acquisition is an important element in immigrant/native earnings convergence, but most of this convergence is … explained by factors other than language acquisition. These results are confirmed using panel data on wages and knowledge of … with past evidence on language-skill complementarity. Natives and immigrants with high levels of education benefit …
Persistent link: https://www.econbiz.de/10012466200
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English Language Requirement and Educational Inequality : Evidence from 16 Million College Applicants in China
Li, Hongbin; Meng, Lingsheng; Mu, Kai; Wang, Shaoda - National Bureau of Economic Research - 2024
This paper studies the unintended effect of English language requirement on educational inequality by investigating how …
Persistent link: https://www.econbiz.de/10014486253
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The Information Value of Online Social Networks : Lessons from Peer-to-Peer Lending
Freedman, Seth - 2014
We examine whether social networks facilitate online markets using data from a leading peer-to-peer lending website. We find that borrowers with social ties are consistently more likely to have their loans funded and receive lower interest rates; however, most borrowers with social ties are more...
Persistent link: https://www.econbiz.de/10012458844
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Some Simple Economics of Crowdfunding
Agrawal, Ajay K. - 2013
transaction costs, reputation, and market design, can explain the rise of non-equity crowdfunding and offer a framework for …
Persistent link: https://www.econbiz.de/10012459529
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Fake News and Advertising on Social Media : A Study of the Anti-Vaccination Movement
Chiou, Lesley - 2018
Online sources sometimes publish information that is false or intentionally misleading. We study the role of social networks and advertising on social networks in the dissemination of false news stories about childhood vaccines. We document that anti-vaccine Facebook groups disseminate false...
Persistent link: https://www.econbiz.de/10012480874
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The Impact of Large-Scale Social Media Advertising Campaigns on COVID-19 Vaccination : Evidence from Two Randomized Controlled Trials
Ho, Lisa Y.; Breza, Emily; Alsan, Marcella; Banerjee, … - National Bureau of Economic Research - 2022
COVID-19 vaccines are widely available in wealthy countries, yet many people remain unvaccinated. Understanding the effectiveness -- or lack thereof -- of popular vaccination campaign strategies is therefore critical. In this paper, we report results from two studies that tested strategies...
Persistent link: https://www.econbiz.de/10013462667
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Estimating the Value of Offsite Tracking Data to Advertisers : Evidence from Meta
Wernerfelt, Nils; Tuchman, Anna; Shapiro, Bradley; … - National Bureau of Economic Research - 2024
Third-party cookies and related 'offsite' tracking technologies are frequently used to share user data across applications in support of ad delivery. These data are viewed as highly valuable for online advertisers, but their usage faces increasing headwinds. In this paper, we quantify the...
Persistent link: https://www.econbiz.de/10015056091
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Aggregation of Consumer Ratings : An Application to Yelp.com
Dai, Weijia - 2012
Because consumer reviews leverage the wisdom of the crowd, the way in which they are aggregated is a central decision faced by platforms. We explore this "rating aggregation problem" and offer a structural approach to solving it, allowing for (1) reviewers to vary in stringency and accuracy, (2)...
Persistent link: https://www.econbiz.de/10012460093