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多样化可以作为知识溢出的来源,也可以作为地区经济的投资组合策略,与地区经济发展密切相关。本文选取我国制造业中28个大类以及其中的125个中类测量了我国22个省或直辖市的制造业相关多样化和不相关多样化水平,并实证检验了制造业多样化水平在我国地区经济发展中的作用。研究表明,相关多样化和不相关多样化对就业增长率都具有显著的正面影响,对劳动生产率的影响则不显著。另外多样化与经济发展的关系在我国东部地区和中西部地区之间存在明显的差异。
Diversification can serve as a source of knowledge spillover and as a portfolio strategy of regional economy, which is closely related to the development of regional economy. This article selects 28 categories in manufacturing industry and 125 of them in the manufacturing industry to measure manufacturing-related diversification and irrelevant diversification levels in 22 provinces or municipalities directly under the Central Government in our country and empirically tests that the level of manufacturing diversification in our country The role of economic development. Research shows that related diversification and irrelevant diversification have a significant positive impact on employment growth rate, but not significant impact on labor productivity. In addition, there is a clear difference between the diversification and economic development in the eastern and central and western regions of our country.