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Identification of Social Interactions through Partially Overlapping Peer Groups

By Giacomo De Giorgi, Michele Pellizzari, and Silvia Redaelli

American Economic Journal: Applied Economics, April 2010

In this paper, we demonstrate that, in a context where peer groups do not overlap fully, it is possible to identify all the relevant parameters of the standard linear-in-means model of social interactions. We apply this novel identification structure t...

On the Optimal Inflation Rate

By Markus K. Brunnermeier and Yuliy Sannikov

American Economic Review, May 2016

In our incomplete markets economy households choose portfolios consisting of risky (uninsurable) capital and money. Money is a bubble, it has positive value even though it yields no payoff. The market outcome is constrained Pareto inefficient due to a pec...

Is a Cambrian Explosion Coming for Robotics?

[Symposium: Automation and Labor Markets]

By Gill A. Pratt

Journal of Economic Perspectives, Summer 2015

About half a billion years ago, life on earth experienced a short period of very rapid diversification called the "Cambrian Explosion." Many theories have been proposed for the cause of the Cambrian Explosion, one of the most provocative being the evolu...

Micro Effects of Macro Announcements: Real-Time Price Discovery in Foreign Exchange

By Torben G. Andersen, Tim Bollerslev, Francis X. Diebold, and Clara Vega

American Economic Review, March 2003

Using a new data set consisting of six years of real-time exchange-rate quotations, macroeconomic expectations, and macroeconomic realizations, we characterize the conditional means of U.S. dollar spot exchange rates. In particular, we find that announcem...