Internal and External Validity in Economics Research: Tradeoffs between Experiments, Field Experiments, Natural Experiments, and Field Data

Brian Roe and David Just

American Journal of Agricultural Economics, 2009, vol. 91, issue 5, 1266-1271

Date: 2009
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American Journal of Agricultural Economics is currently edited by Madhu Khanna, Brian E. Roe, James Vercammen and JunJie Wu

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