The goal of Howitt's positive mathematical programming procedure is to calibrate a mathematical programming model so that it will reproduce a set of base data for the primal variables. This article develops an analogous procedure allowing one to specify the levels of both primal and dual...

This paper develops a general framework for the analysis of marketing margins and the food system. It extends previous work by: (i) disaggregating farm-level production, food processing and food wholesale/retail activities, (ii) introducing closure with respect to production and consumption in...

This paper proposes a new method for ex ante analysis of the poverty impacts arising from policy reforms. Three innovations underlie this approach. The first is the estimation of a global demand system using a combination of micro-data from household surveys and macro-data from the International...

Purpose The purpose of this paper is to assess the effect of crop insurance on farmer income in Inner Mongolia, China Design/methodology/approach We use a survey of farmers in Inner Mongolia, China, with difference-in-difference, propensity score matching, and hybrid propensity score matching...

The goal of Howitt's positive mathematical programming procedure is to calibrate a mathematical programming model so that it will reproduce a set of base data for the primal variables. This article develops an analogous procedure allowing one to specify the levels of both primal and dual...