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 contrast macroeconomics involves the sum total of economic activity, dealing with the issues such as growth, inflation, and unemployment. Macroeconomics is the study of economies on the national, regional or global scale. This key difference alters how the two approach economic situations. Microeconomics does consider how macroeconomic forces impact the world, but it focuses on how those forces impact individual firms and industries.