Knowledge of the influence of depreciation on the costs of machinery usage is required for such decisions as custom hire vs. ownership of machines and timely replacement. Here, the author is developing a technique for estimating the joint effects of the fixed and variable elements on depreciation.

Technological progress in animal production in the last 30 years has been substantial in some ways, negligible in others. On the one hand, livestock production per animal unit of breeding stock has shown gains of the same order as those in crop production per acre of land. But on the other hand,...

This study describes organizational structure, functions, and facilities of forestry cooperatives in the United States. It evaluates their economic performance and explores current problem areas and potentials for future development. Cooperative organization provides woodland owners professional...

During Africa's first two decades of independence from 1960 to 1980, priority was given to increasing the size of national extension services because it was assumed that technology could be imported from industrial countries and the International Agricultural Research Centers. Over the past...