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THE POTATO’S CONTRIBUTION TO POPULATION AND …

THE POTATO S CONTRIBUTION TOPOPULATION AND URBANIZATION: EVIDENCE FROMA HISTORICAL EXPERIMENT NATHANNUNN ANDNANCYQIANW eexploit regional variation in suitability for cultivating potatoes , togetherwith time variation arising from their introduction to the Old World from theAmericas, to estimate the impact of potatoes on Old World POPULATION andurbanization. Our results show that the introduction of the potato was re-sponsible for a significant portion of the increase in POPULATION and urbaniza-tion observed during the eighteenth and nineteenth centuries. According to ourmost conservative estimates, the introduction of the potato accounts for approx-imately one-quarter of the growth in Old World POPULATION and urbanizationbetween 1700 and 1900.

Americas, to estimate the impact of potatoes on Old World population and ... matically improved agricultural productivity and provided more ... variables bias, identifying the causal link between agricultural productivity and economic growth is difficult.5 Our findings pro-

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