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一部分顾客会预期零售商季末降价，可能等待到季末购买以获得更大的净效用，顾客的这种策略行为减少了零售商的收益。
Strategic customers will expect salvage price and likely to wait to a later purchase for a greater net effect. The delayed buying of strategic customers reduces the retailer's expected profit.
少儿抚养人口比例对居民储蓄的净影响取决于少儿的抚养费用水平、父母从对儿童进行人力资本投资行为中得到的效用和教育的投资收益率。
The final result depends on the level of children's upbringing costs, the utility that parents get from the investment in the human capital of children and the return rate of education investment.
本文针对净现值等指标的局限性，提出了累计现值效用和值指标。
To counteract the weakness of net present value, a new index, the utility sum of accumulated net-cash-flow present value, is put forward in this paper.
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