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Kim C. Border
Kim C. Border was an American behavioral economist and professor of economics at the California Institute of Technology. Career Border received a bachelor's degree in economics from Caltech in 1974. Shortly after completing his Ph.D. in economics at the University of Minnesota in 1979, he returned to Caltech as a faculty member, where he remained for over forty years. Border specialized in decision theory and auction design. In 1991, he proved a set of inequalities (now known as Border's theorem) that characterize the possible allocations for a single-item auction, a result that now plays a key role in the computational design of auctions. He also contributed several applications of Arrow's impossibility theorem Arrow's impossibility theorem is a key result in social choice theory showing that no ranked-choice procedure for group decision-making can satisfy the requirements of rational choice. Specifically, Arrow showed no such rule can satisfy the ind ... to economi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Nationality
United States nationality law details the conditions in which a person holds United States nationality. In the United States, nationality is typically obtained through provisions in the U.S. Constitution, various laws, and international agreements. Citizenship is established as a right under the Constitution, not as a privilege, for those born in the United States under its jurisdiction and those who have been "naturalized". While the words ''citizen'' and ''national'' are sometimes used interchangeably, ''national'' is a broader legal term, such that a person can be a ''national'' but not a ''citizen'', while ''citizen'' is reserved to ''nationals'' who have the status of citizenship. Individuals born in any of the 50 U.S. states, the District of Columbia or almost any inhabited territory are United States citizens (and nationals) by birthright. The sole exception is American Samoa, where individuals are typically non-citizen U.S. nationals at birth. Additionally, individuals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
