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My dissertation focused on why infrastructure investment was difficult under the Old Regime and comparatively easy after 1815. More Details |
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With Thomas Piketty and Gilles Postel-Vinay, we are engaged in a large scale data project to document the evolution of the distribution of wealth in France from 1800 to the present . At present we have information on the wealth at death of some 600,000 Parisians. More Detail |
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With Lionel Kesztenbaum we explore why in the 1860s Paris was massively unequal in both wealth and life expectancy, in the next six decades life expectancy declined much faster than wealth inequality? More details. |
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With Timothy Guinnane, Ron Harris, and Naomi Lamoreaux seeks to evaluate how law and enterprises co-evolved in Britain, France, Germany and the U.S. with a special focus for how entrepreneurs might have structured their firms so as to mitigate the costs of untimely dissolution or minority oppression. More Details |
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With Philip T. Hoffman and Gilles Postel-Vinay, we tracked the growth of mortgage markets over two centuries first in Paris and now in France. In 108 towns and cities we have collected regular cross sections of mortgage loans |
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Property rights |
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Law and the Evolution of Firm Governance |
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Mortality in Paris and France |
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Wealth Inequality in Paris 1807-2010 |
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Credit Markets in France 1660-1900 |



