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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/10012908469
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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; Breza, Emily; Alsan, Marcella; Banerjee, … - 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/10014240719
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Does High Frequency Social Media Data Improve Forecasts of Low Frequency Consumer Confidence Measures?
Lehrer, Steven F. - 2019
Social media data presents challenges for forecasters since one must convert text into data and deal with issues related to these measures being collected at different frequencies and volumes than traditional financial data. In this paper, we use a deep learning algorithm to measure sentiment...
Persistent link: https://www.econbiz.de/10012858409
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Do Pharmacists Buy Bayer? Informed Shoppers and the Brand Premium
Bronnenberg, Bart J. - 2014
suggest that misinformation and related consumer mistakes explain a sizable share of the brand premium for health products …
Persistent link: https://www.econbiz.de/10013050309
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Position Auctions with Consumer Search
Athey, Susan - 2010
This paper examines a model in which advertisers bid for "sponsored-link" positions on a search engine. The value advertisers derive from each position is endogenized as coming from sales to a population of consumers who make rational inferences about firm qualities and search optimally....
Persistent link: https://www.econbiz.de/10013151363
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Consumer Price Search and Platform Design in Internet Commerce
Dinerstein, Michael - 2015
Search frictions can explain why the "law of one price" fails in retail markets and why even firms selling commodity products have pricing power. In online commerce, physical search costs are low, yet price dispersion is common. We use browsing data from eBay to estimate a model of consumer...
Persistent link: https://www.econbiz.de/10013032706
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The Evolution of Brand Preferences : Evidence from Consumer Migration
Bronnenberg, Bart J. - 2010
We study the long-run evolution of brand preferences, using new data on consumers' life histories and purchases of … advertising. Heterogeneity in brand preferences explains 40 percent of geographic variation in market shares. These preferences … years in the past still exerting a significant effect on current consumption. Counterfactuals suggest that brand preferences …
Persistent link: https://www.econbiz.de/10013139281
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Brand Loyalty, Generic Entry and Price Competition in Pharmaceuticals in the Quarter Century after the 1984 Waxman-Hatch Legislation
Berndt, Ernst R. - 2014
. Recent studies sponsored by the American Association of Retired Persons focus only on brand prices and ignore substitution to …
Persistent link: https://www.econbiz.de/10013069176
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Threats to Central Bank Independence : High-Frequency Identification with Twitter
Bianchi, Francesco - 2019
This paper presents market-based evidence that President Trump influences expectations about monetary policy. We use tick-by-tick fed funds futures data and a collection of Trump tweets criticizing the conduct of monetary policy and consistently advocating that the Fed lower interest rates....
Persistent link: https://www.econbiz.de/10012862403
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Is Bitcoin a Real Currency? An Economic Appraisal
Yermack, David - 2013
A bona fide currency functions as a medium of exchange, a store of value, and a unit of account, but bitcoin largely fails to satisfy these criteria. Bitcoin has achieved only scant consumer transaction volume, with an average well below one daily transaction for the few merchants who accept it....
Persistent link: https://www.econbiz.de/10013071510