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economic cost : ウィキペディア英語版 | economic cost
Economic cost is the gains and losses in money, time and resources of one course of action compared to another. The comparison includes the gains and losses precluded by taking a course of action, as the those of the course taken itself. Economic cost differs from accounting cost because it includes opportunity cost.〔〔 ==Example== As an example, consider the economic cost of attending college. The accounting cost of attending college includes tuition, room and board, books, food, and other incidental expenditures while there. The opportunity cost of college also includes the salary or wage that otherwise could be earned during the period. So for the two to four years an individual spends in school, the opportunity cost includes the money that one ''could'' have been making at the best possible job. The economic cost of college is the accounting cost ''plus'' the opportunity cost. Thus, if attending college has a direct cost of $20,000 a year for four years, and the lost wages from not working $25,000 a year, then the total economic cost of going to college would be $180,000 ($20,000 x 4 years + the interest of $20,000 for 4 years + $25,000 x 4 years).
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