Dynamic regression equations are estimated for each beef cattle breeding herd and beef cattle inventories at two levels of aggregation, the U.S. and Montana. The analysis for Montana was utilized as a guide for specification of the national equation to reduce the inference problem associated...

A dynamic optimatization model incorporating interrelationships among soil loss, topsoil depth, net farm income, and technological progress is developed. The model provides optimal values of soil loss and soil depth which maximize the stream of net farm ...

This paper is concerned with optimal allocation over time of a single resource which is either fixed in supply or only partially renewable at a point in time. Some resources which fall in this category are mineral deposits, ground water, petroleum, wildlife, and fish. A functional equation is...