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The Gravity of Knowledge

By Wolfgang Keller and Stephen Ross Yeaple

American Economic Review, June 2013

We analyze the international operations of multinational firms to measure the spatial barriers to transferring knowledge. We model firms that can transfer bits of knowledge to their foreign affiliates in either embodied (traded intermediates) or disemb...

Placebo Reforms

By Ran Spiegler

American Economic Review, June 2013

I study a dynamic model of strategic reform decisions that potentially affect the stochastic evolution of a publicly observed economic variable. Policy makers maximize their evaluation by a boundedly rational public. Specifically, the public follows a rul...

Even (Mixed) Risk Lovers Are Prudent

By David Crainich, Louis Eeckhoudt, and Alain Trannoy

American Economic Review, June 2013

The purpose of this note is to analyze properties of the risk lovers' utility function beyond the positive sign of its second order derivative. We show that—contrarily to a priori beliefs—risk lovers are prudent and are willing to accumulate precautio...