Network Econometrics: Theory and Applications
Saturday, Jan. 7, 2017 8:00 AM – 10:00 AM
Hyatt Regency Chicago, Water Tower
- Chair: Bryan Graham, University of California-Berkeley
Strategic Network Formation With Many Agents
AbstractWe consider a random utility model of strategic network formation, where we derive a tractable approximation to the distribution of network links using many-player asymptotics. Our framework assumes that agents have heterogeneous tastes over links, and allows for anonymous and non-anonymous interaction effects among links. The observed network is assumed to be pairwise or cyclically stable, and we impose no restrictions regarding selection among multiple stable outcomes. Our main results concern convergence of the link frequency distribution from finite pairwise stable networks to the many-player limiting distribution. The set of possible limiting distributions is shown to have a fairly simple form and is characterized through aggregate equilibrium conditions, which may permit multiple solutions. We analyze identification of link preferences and propose a method for estimation of preference parameters.
Matching Games With Prices and Externalities
AbstractWe study identification and estimation of matching games with transferable utility and externalities and apply the techniques to mergers.
Collaborative Production in Science: An Empirical Analysis of Coauthorships in Economics
AbstractThis paper studies productivity and preferences in scientific
research. We apply a recently developed method for estimating network formation models to the network of coauthorships in economics. Our model focuses on skill complementarities among researchers with different specialties (e.g., econometrics or macroeconomics) and on costs such as coordinating among multiple coauthors and communicating across multiple locations. Once estimated, the model can be used to simulate aggregate research productivity under policy counterfactuals such as changing the distribution of skills in the workforce (e.g., by subsidizing certain fields in PhD programs) or decreasing the cost of inter-university collaboration (e.g., by funding travel or telecommunication equipment).
Indirect Methods of Estimating Network Structure
AbstractThis paper provides a method for Indirect Methods of Estimating Network Structure.
- C0 - General