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Self-Preferencing at Amazon : Evidence from Search Rankings

Farronato, Chiara; Fradkin, Andrey; MacKay, Alexander - National Bureau of Economic Research - 2023

We study whether Amazon engages in self-preferencing on its marketplace by favoring its own brands (e.g., Amazon Basics) in search. To address this question, we collect new micro-level consumer search data using a custom browser extension installed by a panel of study participants. Using this...

Persistent link: https://www.econbiz.de/10013537786

Consumer Demand with Social Influences : Evidence from an E-Commerce Platform

Caoui, El Hadi; Farronato, Chiara; Horton, John J.; … - National Bureau of Economic Research - 2022

For some kinds of goods, rarity itself is valued. "Fashionable'" goods are demanded in part because they are unique. In this paper, we explore the economics of rare goods using auctions of limited-edition shoes held by an e-commerce platform. We model endogenous entry and bidding in multi-unit...

Persistent link: https://www.econbiz.de/10013362005

Safety Reviews on Airbnb : An Information Tale

Culotta, Aron; Jin, Ginger Zhe; Sun, Yidan; Wagman, Liad - National Bureau of Economic Research - 2023

Consumer reviews, especially those expressing concerns of product quality, are crucial for the credibility of online platforms. However, reviews that criticize a product or service may also dissuade buyers from using the platform, creating an incentive to blur the visibility of critical reviews....

Persistent link: https://www.econbiz.de/10014436986

A Model of Behavioral Manipulation

Acemoglu, Daron; Makhdoumi, Ali; Malekian, Azarakhsh; … - National Bureau of Economic Research - 2023

We build a model of online behavioral manipulation driven by AI advances. A platform dynamically offers one of n products to a user who slowly learns product quality. User learning depends on a product's "glossiness,' which captures attributes that make products appear more attractive than they...

Persistent link: https://www.econbiz.de/10014437003

You Can Lead a Horse to Water : Spatial Learning and Path Dependence in Consumer Search

Hodgson, Charles; Lewis, Gregory - National Bureau of Economic Research - 2023

We develop and estimate a model of consumer search with spatial learning. Consumers make inferences from previously searched objects to unsearched objects that are nearby in attribute space, generating path dependence in search sequences. The estimated model rationalizes patterns in data on...

Persistent link: https://www.econbiz.de/10014372454

Does Q&A Boost Engagement? Health Messaging Experiments in the U.S. and Ghana

Kirgios, Erika; Athey, Susan; Duckworth, Angela; … - National Bureau of Economic Research - 2025

preregistered field experiments in Ghana and Michigan (total N=49,395). Q&A-style communication increased information seeking about …

Persistent link: https://www.econbiz.de/10015195004

Online Business Models, Digital Ads, and User Welfare

Acemoglu, Daron; Huttenlocher, Daniel P.; Ozdaglar, … - National Bureau of Economic Research - 2024

We present a model where social media platforms offer plans that intermix entertaining content with digital advertising ("ads"). Users derive utility from entertainment and learn about their valuation for a product from ads. While some users are fully rational, others naïvely perceive digital...

Persistent link: https://www.econbiz.de/10015094859

Listen to her : gender differences in information diffusion within the household

Fehr, Dietmar; Mollerstrom, Johanna; Perez-Truglia, Ricardo - National Bureau of Economic Research - 2022

experiment had a long-lasting effect on their beliefs. We find that receiving information directly persistently affected … household members' beliefs. This direct learning worked similar for men and women. By contrast, for household members who did … to the husband, it affected his wife's beliefs to a similar degree as if she had directly received the information …

Persistent link: https://www.econbiz.de/10013388869

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

Information Aggregation and Transmission in Strategic Networks

Kung, Fan-chin; Wang, Ping - National Bureau of Economic Research - 2022

Observing the increasingly important roles played by the creation and transmission of information and tacit knowledge, we construct an information-network model incorporating both information transmitters and information aggregators. Given information-processing roles in aggregation or...

Persistent link: https://www.econbiz.de/10013435147