Models of disequilibrium and shortage in centrally planned economies Christopher Davis and Wojciech Charemza,editors Chapman and Hall,London and New York, 1989, 501 pp.

Portes applied the econometric disequilibrium model of market economies to Centrally Planned Economies (CPEs) to show that the consumer goods sector was in equilibrium. Kornai considered these models inapplicable to CPEs and regarded CPEs as chronic shortage economies. Arguments on both sides of the debate are presented in this book. The conflict between Portes and Kornai lies in their microeconomic view of CPEs. While Portes acknowledges the welfare loss from shortages, Kornai analyzes and emphasizes it. Portes' view implies that changes in relative prices can reestablish equilibrium in CPEs. Kornai disagrees because CPEs do not respond to price changes like market economies. Only total reform, now attempted in many transition economies, can eliminate the imbalances.