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Reich, Bryony - NET Institute - 2010

; a community is integrated when there is no social segregation between different identities. I find three possible …-assimilative integration, where groups integrate but individuals retain their own identity; and segregation, where groups socially segregate … and retain their own culture. I find that certain community environments encourage segregation: (i) communities with …

Persistent link: https://www.econbiz.de/10008672211

Recommendation Networks and the Long Tail of Electronic Commerce

Oestreicher-Singer, Gal; Sundararajan, Arun - NET Institute - 2009

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...

Persistent link: https://www.econbiz.de/10005040808

Dynamic Platform Design

Veiga, Andre - NET Institute - 2014

Abstract I model dynamic product design along price and non-price dimensions by a firm in a market with positive network externalities between consumers. In the case of a usage fee, I provide conditions under which the steady state (SS) is unique and show that the introductory price is negative...

Persistent link: https://www.econbiz.de/10010934839

Group Size and Incentive to Contribute: A Natural Experiment at Chinese Wikipedia

Xiaoquan (Michael) Zhang; Zhu, Feng - NET Institute - 2007

The literature of private provision of public goods suggests that incentive to contribute is inversely related to group size. This paper empirically tests this relationship using field data from Chinese Wikipedia, an online encyclopedia. We exploit an exogenous reduction in group size as a...

Persistent link: https://www.econbiz.de/10005585479

Media, Aggregators and the Link Economy: Strategic Hyperlink Formation in Content Networks

Dellarocas, Chrysanthos; Katona, Zsolt; Rand, William - NET Institute - 2010

A key property of the World Wide Web is the possibility for firms to place virtually costless links to third-party content as a substitute or complement to their own content. This ability to hyperlink has enabled new types of players, such as search engines and content aggregators, to...

Persistent link: https://www.econbiz.de/10008672214

Migration Between Platforms

Biglaiser, Gary; CreÌmer, Jacques; Veiga, AndreÌ - NET Institute - 2013

We develop a model of dynamic platform formation under positive platform externalities. Users can switch between an incumbent and entrant platforms, switching opportunities arise stochastically and users can choose whether to accept or reject an opportunity to switch. For homogeneous users, we...

Persistent link: https://www.econbiz.de/10011141095

Revealed Preference Tests of Network Formation Models

Chiong, Khai Xiang - NET Institute - 2013

This paper proposes a revealed preference test of network formation models. Specifically, I consider network formation models where agents are (1) strategic, (2) externalities are confined to within an agentâ€™s k-neighborhood, where k can be varied. I show that this model can be tested...

Persistent link: https://www.econbiz.de/10011141094

Congestion Pricing in an Internet Market

Canals-Cerda, Jose - NET Institute - 2005

This paper analyzes a unique dataset of art auctions on eBay. We study the behavior of buyers and sellers, demand and supply, by means of a novel structural estimation approach. Our empirical framework considers the process of arrival of new bidders as well as the distribution of bidder...

Persistent link: https://www.econbiz.de/10005585491

Network Effects, Market Structure and Industry Performance

Amir, Rabah; Lazzati, Natalia - NET Institute - 2009

This paper provides a thorough analysis of oligopolistic markets with positive demand-side network externalities and perfect compatibility. The minimal structure imposed on the model primitives is such that industry output increases in a firm's rivals' total output as well as in the expected...

Persistent link: https://www.econbiz.de/10008460518

Who's Who in Networks. Wanted: the Key Group

Temurshoev, Umed - NET Institute - 2008

Ballester, Calvo-Armengol, and Zenou (2006, Econometrica, 74/5, pp. 1403-17) show that in a network game with local payoff complementarities, together with global uniform payoff substitutability and own concavity effects, the intercentrality measure identifies the key player - a player who, once...

Persistent link: https://www.econbiz.de/10005760663