Recent results for case-control sampling suggest when the covariate distribution is constrained by gene-environment independence, semiparametric estimation exploiting such independence yields a great deal of efficiency gain. We consider the efficient estimation of the treatment-biomarker...

Implications of real cash balances as a productive input in agricultural production are explored. A system of aggregate input demand functions for agriculture including real cash balances is formulated and estimated, assuming that producers minimize input costs for a given output level....

Food assistance programs, particularly the Food Stamp Program, increase food spending and household income. In 2004, adding food stamp benefits to recipients’ incomes raised 9 percent of recipients out of poverty. Nutritional effects of food assistance programs are uncertain.

Stochastic coefficients models can provide accurate agricultural secto forecasts and useful policy analysis Coefficient variation may occur for many reasons including aggregating over micro units, omitting variable, using an incorrect functional form, and allowing for a dynamic economic theory...