NASA EXPLAINS DUST BOWL DROUGHT. NASA scientists have an explanation for one of the worst climatic events in the history of the United States, the Dust Bowl drought, which devastated the Great Plains and all but dried up an already depressed American economy in the 1930's.
The short run [in economics] is a period of time in which the quantity of at least one input is fixed and the quantities of the other inputs can be varied. The long run is a period of time in which the quantities of all inputs can be varied.
In the short run, economic theories are based on the assumptions of given resources and technology. ADVERTISEMENTS: These assumptions relate to a static economy where there is movement but no change. But in the long run, labour, capital and other resources and technology are assumed to change in certain theories. They relate to a dynamic economy. However, most economic theories are based on the assumption of a static economy.