机会成本与沉没成本李兴在投资方案选择中，如果选择了一个投资方案，则必须放弃投资于其他途径的机会，而其他投资机会可能取得的收益，是实行本方案的一种代价，称之为本投资方案的机会成本。它并非通常意义上的成本，即不是一种支出或费用，而是一种可能失去的收益。这... Opportunity Costs and Sunk Costs When choosing an investment program, if you choose an investment program, you must give up the opportunity to invest in other channels. The possible gains from other investment opportunities are a price to implement this program, Opportunity cost for this investment plan. It is not the cost in the usual sense, that is not an expense or a fee, but a possible loss of profit. This...