在现实生活中,大多数商品表现出来的生命周期,经常有两种状况:产品进入市场后,直接从导入期到衰退期,中间完全没有经过一个成长发育乃至成熟饱和时期;或者以一种非常态的速度迅速达到成熟期、饱和期,继而急速衰退,企业甚至无法在此种产品的生命周期内获取必要的利润积累。当然,这是两种比较极端的例子,但 In real life, the life cycle of most commodities often has two situations: the product enters the market directly from the lead-in period to the recession period without any growth or mature saturation at all; or in an extremely State quickly reached maturity, saturation, and then rapidly declining, companies can not even get the necessary profit-making in the life cycle of such products. Of course, these are two extreme examples, though