Macro cross-country data and micro US county data indicate that resource rich regions have small and productive manufacturing sectors and large and unproductive non-manufacturing sectors. We suggest a process of specialization to explain these facts. Windfall revenue induces labor to move from...

Nonparametric unit-root tests are a useful addendum to the tool-box of time-series analysis. They tend to trade off power for enhanced robustness features. We consider combinations of the RURS (seasonal range unit roots) test statistic and a variant of the level-crossings count. This combination...

This paper provides a systematic analysis of identification in linear social interactions models. This is both a theoretical and an econometric exercise as the analysis is linked to a rigorously delineated model of interdependent decisions. We develop an incomplete information game that...