The Dynamic Evolution of Overseas Market Network of Chinese Enterprises: Agglomeration or Dispersion

Table 2

Descriptive index system of enterprise export network.

Attribute	Variable name	Expression	Implication
Direct side	Whether to export in the previous period		Dummy variable of whether the enterprise exported to country c in the previous period
Number of nodes	Number of trade connections in the previous period		The number of enterprises exporting to global destinations in the previous period
Geographic network	Geographic search effect		The geographical distance function between China and country c
	Geographical remoteness effect		Function of the average geographic distance between country c and other countries in the world
	Geographic network expansion effect		The function of the average geographic distance between country c and the previous trade-connected country
Economic network	Economic remoteness effect		The average degree of close economic ties between country c and other countries in the world
	Economic network expansion effect		The average degree of economic ties between country c and the trade-connected countries in the previous period

Note. N represents the number of countries, I (.) is an indicative function, and is a monotonically decreasing function of geographic distance.