Gal Oestreicher-Singer

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It has been conjectured that the peer-based recommendations associated with electronic commerce lead to a redistribution of demand from popular products or " blockbusters " to less popular or " niche " products, and that electronic markets will therefore be characterized by a " long tail " of demand and revenue. We test this conjecture using the revenue(More)
This paper presents a model of local network effects in which agents connected in a social network each value the adoption of a product by a heterogeneous subset of other agents in their neighborhood, and have incomplete information about the structure and strength of adoption complementarities between all other agents. I show that the symmetric Bayes-Nash(More)
O nline commercial interactions have increased dramatically over the last decade, leading to the emergence of networks that link the electronic commerce landing pages of related products to one another. Our paper conjectures that the explicit visibility of such " product networks " can alter demand spillovers across their constituent items. We test this(More)
Online content and products are presented as product networks, where nodes are product pages linked by hyperlinks. These links are typically algorithmically-induced recommendations based on aggregated data. Recently, websites have begun to offer social networks and user-generated links alongside the product network, creating a dual-network structure. We(More)