Prices and Productivity in Agriculture
估计了一个变系数跨国农业生产函数，发现过去的价格预期影响生产率，若发展中国家消除价格干预，农业生产率平均可提高约四分之一。
Developing countries often tax agriculture heavily, a practice that might affect the productivity as well as the quantity of resources allocated to agriculture. A variable-coefficient, cross-country agricultural production function is estimated, with past price expectations among the determinants of the production coefficients. Productivity's responsiveness to those expectations implies that had these developing economies eliminated price interventions, agricultural productivity would have increased on average by about a fourth. Copyright 1993 by MIT Press.