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. 2024 Dec 27;19(12):e0315264. doi: 10.1371/journal.pone.0315264

Table 1. Meaning of variables.

Variable category Variable names Calculation method
Explained Variables Industrial structure level Calculate the coefficient of upgrading industrial structure according to Eq (2)
Core Explanatory Variable Pilot policy on entrepreneurship for migrant workers returning to their hometowns Dummy variable (0, 1)
Control Variables Level of economic development Lngdp
Level of education Number of students enrolled in general secondary schools/total population at the end of the year
Level of communication Number of fixed-line telephone subscribers/total population
Level of social welfare Number of beds in social welfare institutions/ Total population at the end of the year
Size of Government General budget expenditures of local finances / GDP
Mechanism Variable Innovation level Innovation Index of the China Rural Innovation and Entrepreneurship Index Report 2023
Level of market demand Total retail sales of consumer goods / Total population at the end of the year, in logarithms