This publication has been prepared as an aid for researchers and for teachers of advanced courses in production economics. Computer graphics is utilized as a highly adaptable tool for discovering shapes of agricultural production function surfaces. The first part of this publication presents...

The purpose of this publication is explore some of the implications of recent work dealing with duality, elasticities of substitution, and translog specifications of production functions for agricultural research. These theoretical developments have a broad-based applicability to research in...

The objective of this paper is to develop a model of the U.S. fertilizer industry, containing equations representing the supply, demand, price, imports, and exports of fertilizer products (both aggregate and specific). The model will be empirically estimated, and parameter estimates used to...