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  • Influence
Distinguishing influence-based contagion from homophily-driven diffusion in dynamic networks
We develop a dynamic matched sample estimation framework to distinguish influence and homophily effects in dynamic networks, and apply this framework to a global instant messaging network of 27.4 million users. Expand
The Sharing Economy: The End of Employment and the Rise of Crowd-Based Capitalism
Sharing isn't new. Giving someone a ride, having a guest in your spare room, running errands for someone, participating in a supper club -- these are not revolutionary concepts. What is new, in theExpand
Nonlinear Pricing of Information Goods
This paper analyzes optimal pricing for information goods under incomplete information, when both unlimited-usage (fixed-fee) pricing and usage-based pricing are feasible, and administering usage- based pricing may involve transaction costs. Expand
Optimal Design of Crowdsourcing Contests
We show that all significant outcomes of crowdsourcing contests will be determined by contestants in a small neighborhood (core) of the most efficient contestant type; in particular, the asymptotic structure of the contests is distribution-free. Expand
Peer-to-Peer Rental Markets in the Sharing Economy
To investigate whether peer-to-peer rental markets for durable goods are welfare-improving, we develop a new dynamic model of such markets in which users with heterogeneous utilization rates may alsoExpand
Managing Digital Piracy: Pricing and Protection
This paper analyzes the optimal choice of pricing schedules and technological deterrence levels in a market with digital piracy where sellers can influence the degree of piracy by implementing digital rights management (DRM) systems. Expand
Recommendation Networks and the Long Tail of Electronic Commerce
We study the impact of visible recommendations on the long tail of electronic commerce and show that categories whose products are influenced more by the recommendation network have significantly flatter demand and revenue distributions, even after controlling for variation in average category demand, category size, and price differentials. Expand
The Visible Hand? Demand Effects of Recommendation Networks in Electronic Markets
This paper presents new evidence quantifying the role of network position in electronic markets and highlights the power of basing (virtual) shelf position on consumer preferences that are explicitly revealed through shared purchasing patterns. Expand
Self-Regulation and Innovation in the Peer-to-Peer Sharing Economy
A growing fraction of the world’s economy involves digitally enabled peer-to-peer exchange. This form of exchange has expanded dramatically in recent years, moving beyond simple retailing and freeExpand
Intelligent agents in electronic markets for information goods: customization, preference revelation and pricing
A model of an electronic market with customizable products analyzes the pricing, profitability and welfare implications of agent-based technologies that price dynamically based on product preference information revealed by consumers. Expand