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Reich, Bryony - NET Institute - 2010

I develop a framework to explain why identity divides some communities and not others. An identity group is defined as a group of individuals with the same `culture'. A community is divided when different identities are socially segregated; a community is integrated when there is no social...

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

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

Recommendation Networks and the Long Tail of Electronic Commerce

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

for assessing the influence of networks on demand and revenue patterns in electronic commerce, and provides new empirical …

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

SOCIAL NETWORKING AND INDIVIDUAL OUTCOMES: INDIVIDUAL DECISIONS AND MARKET CONTEXT

IOANNIDES, YANNIS M.; Soetevent, Adriaan R. - NET Institute - 2005

This paper examines social interactions when social networking is endogenous. It employs a linear-quadratic model that accommodates contextual e®ects, and endogenous local inter- actions, that is where individuals react to the decisions of their neighbors, and endogenous global ones, where...

Persistent link: https://www.econbiz.de/10005760658

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

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

networks one site makes high investments in content and other sites link to it. Interestingly, competitive dynamics often … preclude the formation of link networks, even in settings where they would improve everyone's profits. Furthermore, such … networks improve economic efficiency only when all members have similar abilities to produce content; otherwise the less …

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

Electronic Health Information Exchange, Competition, and Network Effects

Desai, Sunita - NET Institute - 2014

information may be a barrier to the development of a health information network. Health information networks are designed to … over $30 billion to support the development of health information networks and electronic health information sharing …

Persistent link: https://www.econbiz.de/10010961657

Optimal Consumer Network Structure Formation under Network Effects: Seeds Controllability and Visibility

Dou, Yifan; Niculescu, Marius Florin; Wu, Dongjun - NET Institute - 2011

Understanding the process of software adoption is of paramount importance to software start-ups. We study a monopolistic seller’s optimal consumer network structure formation (seeding, segmentation, sequencing, and pricing strategies) under network effects. We demonstrate the importance of...

Persistent link: https://www.econbiz.de/10010905452