其价值等于再生产成本减去折旧价再加上土地价值。
The value is calculated as reproduction cost minus depreciation plus land value.
它们的生产成本高昂,但再生产和销售的成本低廉,因而展现出强大的规模经济效益,并容易诱发供应过量。
They are expensive to produce but cheap to reproduce and distribute, and therefore exhibit strong economies of scale with incentives to an over-supply.
应用推荐