The russian-born u. s. economist and nobel laureate wassily leontief (1906–1999) was interested in the following question: what output should each of the industries in an economy produce to satisfy the total demand for all products? here, we consider a very simple example of input–output analysis, an economy with only two industries, a and b. assume that the consumer demand for their products is, respec

according to hess's theory, when the magma cooled, it would expand and push the tectonic plates apart. it would push the north and south america plates to the west and eurasia and africa ones to the east. the atlantic ocean would get wider but the coastlines of the masses would stay the same.

harry hammond hess was a geologist and a united states navy officer in the second world war. he is considered to be one of the founding fathers of the theory of plate tectonics. he is known for his theories on sea floor spreading, stating that the movement of the continents was the result of see floor spreading. the continents are attached to the plates and do not move separately. the plates themselves shift and change shape, carrying the continents along.

a small town is a good definition for new france in 1750. new france was the area colonized by france in north america. the area is nowadays the city of quebec in canada.