In the era of decreasing product life-cycle, single period production decision like news-vendor model has been more important.

随着产品生命周期呈现不断下降的趋势，单周期的生产决策报童模型的研究变得越来越重要。

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There is no longer a 2-5-10 year cycle in product, like there used to be.

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Samsung, and competitors like HTC, have reduced the product development cycle to 12 months and Apple simply is not ready for it.

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People like to say that Samsung is not innovative but reducing the product cycle from 24 months to 12 is big news and a huge innovation effort.

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