Fall 2011

CANCELLED: Linear Social Networks Models

This paper provides a systematic analysis of identification in linear social networks models. This is both a theoretical and an econometric exercise in that it links identification analysis to a rigorously delineated model of interdependent decisions. We develop a Bayes-Nash equilibrium analysis for interdependent decisions under incomplete information in networks that produces linear strategy profiles of the type conventionally used in empirical work and which nests linear social interactions models as a special case.

Mortality Attributable to Obesity: Controversies, Evidence, and Challenges

Prior estimates of the magnitude of the association between obesity and mortality have varied widely and have been a source of ongoing debates and controversies. Some prior studies have indicated that mortality attributable to obesity rivals that of cigarette smoking, while other research points toward a more modest role for obesity. In my talk, I will review prior controversies and discuss relevant methodological challenges pertinent to estimating obesity risks. I will present selected evidence from my prior work on this topic.