This paper analyzes the effects of returns to scale, farm-size, techni
cal, allocative and scale inefficiencies on the profitability of Utah
dairy farms. It derives the conditions necessary to compare the profit
ability of farms within and between different size classifications as
small, medium, and large. Some comparative static results regarding in
creases in input prices and a decrease or withdrawal of price support
on profitability of small, medium, and large farms are presented.