Define Gross Domestic Product (GDP). Explain how GDP relates to living standards of a country and its shortcomings as measure of overall well-being. Define "the economic surplus" and describe the four stages of economic history (both as defined/described in the Stanford text). For each stage identify the class that produces the economic surplus (if there is a surplus) and the class that controls the surplus. Name two defining features of capitalism. Are all capitalist countries/economies the same with respect to economic inequality and the size and role of government? If no, explain with examples of how some groups of countries may be different than others. Compare and contrast the ideas about government intervention in the economy during the "Golden Age" of capitalism (1950s to 1970s, based on the ideas of economists such of John Maynard Keynes) compared to those during neoliberalism (1970s to present, based on the ideas of economists such as Milton Friedman)