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Housing, Health, and Happiness

By Matias D. Cattaneo, Sebastian Galiani, Paul J. Gertler, Sebastian Martinez, and Rocio Titiunik

American Economic Journal: Economic Policy, February 2009

We investigate the impact of a large-scale Mexican program to replace dirt floors with cement floors on child health and adult happiness. We find that replacing dirt floors with cement significantly improves the health of young children measured by dec...

Taxing Capital? Not a Bad Idea after All!

By Juan Carlos Conesa, Sagiri Kitao, and Dirk Krueger

American Economic Review, March 2009

We quantitatively characterize the optimal capital and labor income tax in an overlapping generations model with idiosyncratic, uninsurable income shocks and permanent productivity differences of households. The optimal capital income tax rate is signi...

Peers at Work

By Alexandre Mas and Enrico Moretti

American Economic Review, March 2009

We study peer effects in the workplace. Specifically, we investigate whether, how, and why the productivity of a worker depends on the productivity of coworkers in the same team. Using high-frequency data on worker productivity from a large supermarket...