Product Portfolios and the Introduction of New Products: An Example from the Insecticide Industry
研究多产品企业的新产品引入如何受其现有产品组合的影响，通过杀虫剂行业数据，发现化学相似性影响最大，但潜在垄断力量也有显著作用。
This article explores how the introduction of new products by multiproduct firms might be affected by existing goods in each firm's portfolio. A logit analysis is conducted to estimate the effects of local monopoly power, cost advantages, and learning. Characteristics theory is used to determine whether the addition of a new product by a firm's existing portfolio creates the potential for local monopoly power. While the chemical similarity of products has the largest effect, results nonetheless indicate the empirical significance of potential monopoly power in influencing product introductions by multiproduct firms.