Abstract

 


 



Learning Through Noticing: Theory and Experimental Evidence in Farming


Rema Hanna


Harvard University - Harvard Kennedy School (HKS)

Sendhil Mullainathan


Harvard University - Department of Economics; National Bureau of Economic Research (NBER)

Joshua Schwartzstein


Dartmouth College

September 6, 2012


Abstract:     
Existing learning models attribute failures to learn to a lack of data. We model a different barrier. Given the large number of dimensions one could focus on when using a technology, people may fail to learn because they failed to notice important features of the data they possess. We conduct a field experiment with seaweed farmers to test a model of “learning through noticing”. We find evidence of a failure to notice: On some dimensions, farmers do not even know the value of their own input. Interestingly, trials show that these dimensions are the ones that farmers fail to optimize. Furthermore, consistent with the model, we find that simply having access to the experimental data does not induce learning. Instead, farmers change behavior only when presented with summaries that highlight the overlooked dimensions. We also draw out the implications of learning through noticing for technology adoption, agricultural extension, and the meaning of human capital.

Number of Pages in PDF File: 63

Keywords: Learning, technology, farming, agriculture, human capital

JEL Classification: D83, J24, J43, O33

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Date posted: September 12, 2012  

Suggested Citation

Hanna, Rema, Mullainathan, Sendhil and Schwartzstein, Joshua, Learning Through Noticing: Theory and Experimental Evidence in Farming (September 6, 2012). Available at SSRN: http://ssrn.com/abstract=2144852 or http://dx.doi.org/10.2139/ssrn.2144852

Contact Information

Rema Hanna (Contact Author)
Harvard University - Harvard Kennedy School (HKS) ( email )
79 John F. Kennedy Street
Cambridge, MA 02138
United States
Sendhil Mullainathan
Harvard University - Department of Economics ( email )
Littauer Center
Cambridge, MA 02138
United States
617-496-2720 (Phone)
617-495-7730 (Fax)
National Bureau of Economic Research (NBER) ( email )
1050 Massachusetts Avenue
Cambridge, MA 02138
United States
617-588-1473 (Phone)
617-876-2742 (Fax)
Joshua Schwartzstein
Dartmouth College ( email )
Hanover, NH 03755
United States
Feedback to SSRN (Beta)


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