6. a) What is meant by the term “International Division of Labour”? b) What is a product cycle? c) Explain why the production location of different commodities changes through time?
13. The 1950 Census defined many Metropolitan Statistical Areas (MSAs contains a core city of at least 50.000 and at least on eadjoining county meeting the appropriate functional criteria ) in Megalopolis and, in fact, MSAs formed an unbroken entity from southern New Hampshire to northern Virginia. Since the 1950 Census, the Census Bureau's designation of individual counties as metropolitan has expanded as has the population of the region. In 1950, Megalopolis had a population of 32 million, today the metropolitan area includes more than 44 million people, approximately 16% of the entire U.S. population. Four of the seven largest CMSAs (Consolidated Metropolitan Statistical Areas) in the U.S. are part of Megalopolis and are responsible for over 38 million of Megalopolis' population (the four are New York-Northern New Jersey-Long Island, Washington-Baltimore, Philadelphia-Wilmington-Atlantic City, and Boston-Worcester-Lawrence). New york (1990) recorded as City (7.3 million); PMSA (17million); CMSA (19.3 million).
