Enterprise clusters, that is, "industrial clusters ". Refers to the concentration in a certain area of a specific industry of many different sizes of enterprises with division of labor relations, as well as its development of a variety of institutions, organizations, etc., through the crisscrossing network relations and closely linked to the spatial economic collective.

The industry chain is often used as a link to vertically connect the upstream research and development, midstream production and processing, and downstream sales and other related enterprises and organizations. It is an efficient form of production organization with obvious association and agglomeration effects.

It is conducive to the agglomeration of production factors, optimization of resource allocation, acceleration of institutional innovation, and substantial reduction of production and transaction costs of enterprises, thus enhancing the overall competitiveness of the enterprises and the region, and is an important way to promote the regional economic growth.

Enterprise population:

This refers to the geographic concentration of companies and institutions with alternative functions of enterprises or products in the same industry, and an enterprise population is a collection of those enterprises that rely on the same physical and social environment, and rely on the ****same resources.

In general, the development of enterprises always results in the formation of enterprise populations, which are *** born, reproduced and expanded in the form of enterprise populations, and thus enterprise populations belong to a grass-roots unit existing in the overall enterprise concept. Enterprise population is not only a collection of individual enterprises, it also has a higher level of characteristics, in order to the whole with the environment in a variety of relationships, and thus the enterprise population is the basic constituent unit of the enterprise ecosystem.

From the evolutionary point of view, the evolutionary process is the individual genes in the enterprise population from one generation to another generation of the change process, and thus the population is an evolutionary unit.