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How much influencer marketing is undisclosed? : evidence from Twitter
Ershov, Daniel; He, Yanting; Seiler, Stephan - 2023
We quantify the prevalence of undisclosed influencer posts on Twitter across a large set of brands based on a unique data set of over 100 million posts. We develop a novel method to detect undisclosed influencer posts and find that 96% of influencer posts are not disclosed as such. Despite...
Persistent link: https://www.econbiz.de/10014422653
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Advertising competition in the free-to-air TV broadcasting industry
Ivaldi, Marc; Zhang, Jiekai - 2017
This paper empirically investigates the advertising competition in the French broadcast television industry within a …, and quantities of advertising of twenty-one TV channels from March 2008 to December 2013. We specify a structural model of … French TV advertising market is of the Cournot type. Further, we provide empirical evidence that the price-cost margin is not …
Persistent link: https://www.econbiz.de/10011646956
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Value creation by ad-funded platforms
Langus, Gregor; Lipatov, Vilen - 2022
We identify features of interactions on online platforms that make an ad-funded business model attractive for the platform, but also for consumers. We then show that ad-funded platforms heavily rely on data for their ability to create value for their users. Formally, we show that data...
Persistent link: https://www.econbiz.de/10012801504
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Double marginalization and vertical integration
Choné, Philippe; Linnemer, Laurent; Vergé, Thibaud - 2021
Asymmetric information in procurement entails double marginalization. The phenomenon is most severe when the buyer has all the bargaining power at the production stage, while it vanishes when the buyer and suppliers' weights are balanced. Vertical integration eliminates double marginalization...
Persistent link: https://www.econbiz.de/10012494786
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Dissipative advertising signals quality even without repeat purchases
Linnemer, Laurent (contributor) - 2008
Persistent link: https://www.econbiz.de/10003712507
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Fighting collusion by permitting price discrimination
Helfrich, Magdalena; Herweg, Fabian - 2016
We investigate the effect of a ban on third-degree price discrimination on the sustainability of collusion. We build a model with two firms that may be able to discriminate between two consumer groups. Two cases are analyzed: (i) Best-response symmetries so that profits in the static Nash...
Persistent link: https://www.econbiz.de/10011434582
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Third-degree price discrimination in oligopoly when markets are covered
Dertwinkel-Kalt, Markus; Wey, Christian - 2020
We analyze oligopolistic third-degree price discrimination relative to uniform pricing when markets are always covered. Pricing equilibria are critically determined by supply-side features such as the number of firms and their marginal cost differences. It follows that each firm's Lerner index...
Persistent link: https://www.econbiz.de/10012390927
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Ad networks, consumer tracking, and privacy
D'Annunzio, Anna; Russo, Antonio - 2017 - This version: September 2017
We study the relation between ad networks, consumer privacy and the online advertising market. We consider two …). We show that tracking may increase or decrease the provision of ads, depending on its effect on expected advertising …
Persistent link: https://www.econbiz.de/10011723426
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The limits of marketplace fee discrimination
Tremblay, Mark J. - 2021
Platforms often use fee discrimination within their marketplace (e.g., Amazon, eBay, and Uber specify a variety of merchant fees). To better understand the impact of marketplace fee discrimination, we develop a model that allows us to determine equilibrium fee and category decisions that depend...
Persistent link: https://www.econbiz.de/10012692299
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Markets for information : of inefficient firewalls and efficient monopolies
Cabrales, Antonio (contributor); Gottardi, Piero (contributor) - 2008
typically noisy. Also, the market for information tends to be a monopoly, and there is typically inefficiency given by …
Persistent link: https://www.econbiz.de/10003720829