How Rural Market Imperfections Shape the Relation Between Farm Size and Productivity: a General Framework and an Application to Pakistani Data
1996
R Heltberg
The subject of this article is the alleged inverse relationship between farm size and productivity in developing countries. The recent controversy is reviewed, and a framework is provided to explain the inverse relationship based on plausible assumptions about imperfections in the markets for labor, credit and land. On this basis testable hypotheses are derived. Using farm-level panel data from Pakistan, the framework is assessed by regressing output on operational farm size, size of owned holding, family size, tenurial status and irrigation status of the land. Household fixed effects are used to account for remaining unobserved heterogeneity. It is concluded that an inverse relationship is present in Pakistan, and that the market imperfections framework performs well with the data. [author's abstract]
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