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American Economic Review: Vol. 100 No. 1 (March 2010)
AER Volume. 100, Issue 1 | 
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Learning about a New Technology: Pineapple in Ghana
Article Citation
Conley, Timothy G., and
Christopher R. Udry. 2010. "Learning about a New Technology: Pineapple in Ghana."
American Economic Review,
100(1): 35-69.
DOI: 10.1257/aer.100.1.35
DOI: 10.1257/aer.100.1.35
Abstract
This paper investigates the role of social learning in the diffusion of a new agricultural
technology in Ghana. We use unique data on farmers' communication
patterns to define each individual's information neighborhood. Conditional on
many potentially confounding variables, we find evidence that farmers adjust
their inputs to align with those of their information neighbors who were surprisingly
successful in previous periods. The relationship of these input adjustments
to experience further indicates the presence of social learning. In addition,
applying the same method to input choices for another crop, of known technology,
correctly indicates an absence of social learning effects. (JEL D83, O13,
O33, Q16)
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Authors
Conley, Timothy G. (U Chicago)
Udry, Christopher R. (Yale U)
Udry, Christopher R. (Yale U)
JEL Classifications
D83: Search; Learning; Information and Knowledge; Communication; Belief
O13: Economic Development: Agriculture; Natural Resources; Energy; Environment; Other Primary Products
O33: Technological Change: Choices and Consequences; Diffusion Processes
Q16: Agricultural R&D; Agricultural Technology; Agricultural Extension Services
O13: Economic Development: Agriculture; Natural Resources; Energy; Environment; Other Primary Products
O33: Technological Change: Choices and Consequences; Diffusion Processes
Q16: Agricultural R&D; Agricultural Technology; Agricultural Extension Services
