Damage Control and Increasing Returns: Further Results

David Hennessy

American Journal of Agricultural Economics, 1997, vol. 79, issue 3, 786-791

Abstract: Recently, researchers have been paying attention to the possibility of increasing returns to the use of damage control inputs under very plausible technologies. By looking at the mathematical structure of damage and control functions, we can describe a necessary and sufficient condition on these functions for locally increasing returns to occur. Using examples, I demonstrate how the result can be applied to models with single or multiple control inputs. Because analytic solutions are sometimes not possible, a simple empirical test for concavity violations is also provided. A caution is given about problems associated with estimating the basic model specification. Copyright 1997, Oxford University Press.

Date: 1997
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