Shortening of the PLC—AN Empirical Test
分析了37种家电产品50年间导入期和成长期的长度变化，首次为产品生命周期缩短这一常见假设提供了实证证据。
Analysis of changes in the length of the introductory and growth stages of the product life cycle of 37 household appliances over a 50-year period provides the first empirical evidence for the commonly held assumption that the cycle's length is decreasing.