Replaced with revised version of paper 02/15/11.

Effects of devaluation are examined for a one-commodity, tworegion case. A percentage change in price of the ()commodity will not exceed a percentage change in the quantity traded of the commodity. A change in quantity traded could be large, even under the assumption that underlying supply and...

Programming models approximate market prices and quantities when regulations constrain firm choices, because market outcomes result when welfare is appropriately defined and includes performance and environmental constraints. This study discusses market operation in quality-constrained sectors,...

Price responsiveness and preferences for wheat classes are measured using a Case function specification. Results indicate there have been numerous changes in market shares of wheat classes from different exporters in specific markets. In general, quality differentials are important in some...