Product proliferation strategies and firm performance: The moderating role of product space complexity
研究1990-2000年西班牙汽车市场中，关税降低导致产品空间复杂化，分析了跨利基（产品广度）和利基内（产品深度）两种产品扩散策略对企业绩效的影响，以及产品空间复杂性的调节作用。
In the Spanish automobile market between 1990 and 2000, significant reductions in tariff and nontariff protections increased the complexity of the product space, through the penetration of new car brands and models. Acknowledging these environmental dynamics, this study details conditions in which across‐niche (product breadth or intraindustry diversification) and within‐niche (product depth or versioning) product proliferation exerts a positive relationship on firm performance, as well as how key relationships change according to the complexity of the product space in the industry . Copyright © 2013 John Wiley & Sons, Ltd.