Nonparametric support for two important hypotheses relevant to econometric model specification is examined. Results of various nonparametric tests for behavioural objective and aggregation level of Mexican agricultural production data are reported. The evidence does not refute the hypothesis...

To anticipate the likely effects of recent trade agreements with Mexico on the environment and food safety, this paper examines changes in agricultural chemical use. Econometric estimation and simulation suggest that the combined effects of the North American Free Trade Agreement (NAFTA),...

To guide formulation of an aggregate model of U.S. agricultural production, this paper reports nonparametric test results for both behavioral objective and aggregation level. Nonparametric tests are implemented as heuristics to determine empirical support for simplified analytical structures....

To anticipate the likely effects of recent trade agreements with Mexico on the environment and food safety, this paper examines changes in agricultural chemical use. Econometric estimation and simulation suggest that the combined effects of the North American Free Trade Agreement (NAFTA),...