Applied economists often wish to measure the effects of policy changes (like trade liberalization) or managerial decisions (like R&D expenditures or exporting) on firm-level productivity patterns. But firm-level data on physical quantities of output, capital, and intermediate inputs are...

Applied economists often wish to measure the effects of managerial decisions or policy changes on plant-level productivity patterns. But plant-level data on physical quantities of output, capital, and intermediate inputs are usually unavailable. Therefore, when constructing productivity...

In most African economies, both agricultural production and the terms- of-trade are highly uncertain. This paper re-examines the implications of such uncertainty for the optimal mix of production and trade under alternative assumptions about international capital flows. The ultimate objective is...