Oftentimes it is "removing barriers to trade" that motivates countries to join regional trade blocs, since members of such "blocks" have completely free trade with one another. :
A big difference was their view of human free will.
B.F. Skinner saw psychology in terms of behaviorism, that our actions are shaped as reactions in consequence to environmental factors. So the best way to promote healthy behavior is to shape the environment in society to cause our behavior to be turned in positive directions.
Carl Rogers believed in a person-centered approach to therapy, working with the person's internal thoughts and experiences. He was concerned that Skinner's approach could lead to some level of cultural engineering, with some deciding how others' behavior in society should be shaped by controlling external factors.
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These amendments were intended to guarantee freedom to former slaves and to establish and prevent discrimination in certain civil rights to former slaves and all citizens of the United States. The promise of these amendments was eroded by state laws and federal court decisions throughout the late 19th century.
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