Articles

Opportunity cost

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In microeconomic theory, the opportunity cost of a choice is the value of the best alternative fo…

Karin Costelloe

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Karin Stephen (née Costelloe; 10 March 1889 – 12 December 1953) was a British psychoanalyst and p…

Costa Rica

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This article may incorporate text from a large language model.It may include hallucinated informa…