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.
Trickle down economics. Tejvan Pettinger December 9, 2014 concepts, economics. Trickle down economics is a term used to describe the belief that if high income earners gain an increase in salary, then everyone in the economy will benefit as their increased income and wealth filter through to all sections in society.