Abstract: Technological diversification have important effects on firm performance, but lacks research between it and new product development performance. We use 534 firms’ patent data and new product data of China’s automobile industry, and divided the technological diversification into related technological diversification and unrelated technological diversification, to study the effects of technological diversification on the new product development performance, and discusses the knowledge coherence between them. The empirical results indicate that: the relationship between related technological diversification and new product development performance is inverted U-shaped, unrelated technological diversification has a positive effect on new product development performance; knowledge coherence plays a positive moderating role between related and unrelated technological diversification and new product development performance., Technological diversification have important effects on firm performance, but lacks research between it and new product development performance. We use 534 firms’ patent data and new product data of China’s automobile industry, and divided the technological diversification into related technological diversification and unrelated technological diversification, to study the effects of technological diversification on the new product development performance, and discusses the knowledge coherence between them. The empirical results indicate that: the relationship between related technological diversification and new product development performance is inverted U-shaped, unrelated technological diversification has a positive effect on new product development performance; knowledge coherence plays a positive moderating role between related and unrelated technological diversification and new product development performance., Technological diversification have important effects on firm performance, but lacks research between it and new product development performance. We use 534 firms’ patent data and new product data of China’s automobile industry, and divided the technological diversification into related technological diversification and unrelated technological diversification, to study the effects of technological diversification on the new product development performance, and discusses the knowledge coherence between them. The empirical results indicate that: the relationship between related technological diversification and new product development performance is inverted U-shaped, unrelated technological diversification has a positive effect on new product development performance; knowledge coherence plays a positive moderating role between related and unrelated technological diversification and new product development performance.

摘要： 技术多元化对企业绩效有重要影响，但缺乏其对新产品开发绩效影响的研究。采用中国汽车产业534家企业的专利数据和新产品数据，将技术多元化划分为相关技术多元化和非相关技术多元化，研究技术多元化对新产品开发绩效的影响，并探讨了知识一致性在二者之间的调节作用。实证结果表明：相关技术多元化与新产品开发绩效呈倒U型关系，非相关技术多元化正向影响新产品开发绩效；知识一致性在相关技术多元化、非相关技术多元化与新产品开发绩效之间均起正向调节作用。, 技术多元化对企业绩效有重要影响，但缺乏其对新产品开发绩效影响的研究。采用中国汽车产业534家企业的专利数据和新产品数据，将技术多元化划分为相关技术多元化和非相关技术多元化，研究技术多元化对新产品开发绩效的影响，并探讨了知识一致性在二者之间的调节作用。实证结果表明：相关技术多元化与新产品开发绩效呈倒U型关系，非相关技术多元化正向影响新产品开发绩效；知识一致性在相关技术多元化、非相关技术多元化与新产品开发绩效之间均起正向调节作用。, 技术多元化对企业绩效有重要影响，但缺乏其对新产品开发绩效影响的研究。采用中国汽车产业534家企业的专利数据和新产品数据，将技术多元化划分为相关技术多元化和非相关技术多元化，研究技术多元化对新产品开发绩效的影响，并探讨了知识一致性在二者之间的调节作用。实证结果表明：相关技术多元化与新产品开发绩效呈倒U型关系，非相关技术多元化正向影响新产品开发绩效；知识一致性在相关技术多元化、非相关技术多元化与新产品开发绩效之间均起正向调节作用。