Prior research on retail sales distributions finds both product concentration and long tails. However, gross margin dollars (rather than sales dollars) are critical drivers of retail financial perf...

中文翻译：

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零售毛利率分布：分析及启示

先前对零售销售分布的研究发现了产品集中度和长尾现象。然而，毛利率（而不是销售额）是零售财务绩效的关键驱动因素......