Smith is also known for creating the concept of gross domestic product (GDP) and for his theory of compensating wage differentials. 2 According to this theory, dangerous or undesirable jobs tend to pay higher wages as a way of attracting workers to these positions.
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The rule of Pericles was a golden age was a golden age for Athens because Pericles ruled the land fairly and understood the people of Athens and made it safe. The rulers later on after the golden period slowly brought Athens to shambles.
Mongolia gained control of the route in 1275 and kept it that way until it closed.
Political machine, in U.S. politics, a party organization, headed by a single boss or small autocratic group, that commands enough votes to maintain political and administrative control of a city, county, or state.
The rapid growth of American cities in the 19th century, a result of both immigration and migration from rural areas, created huge problems for city governments, which were often poorly structured and unable to provide services. In those conditions, political machines—such as Tammany Hall, run by boss William Magear Tweed (1823–73) in New York City—were able to build a loyal voter following, especially among immigrant groups, by performing such favours as providing jobs or housing.