Variables	Symbols	Full name of variables	The definition of variables
Dependent variable	INNO_T	Innovation	Natural logarithm of total number of patents at the end of year t + 2
Dependent variable	INNO_TR	Innovation	Natural logarithm of total number of patents pro ratio at the end of year t + 2 (Robust test)
Independent variable	OVERSEA_M	Mean overseas social capital	Mean number of people in executive team who have oversea working experiences at year t
Mediate variable	PRESTIGE	Prestige in network	The degree centrality of the listed firm’s whole network at the end of year t + 1
Mediate variable	POWER	Power in network	The effect size in the listed firm’s whole network at the end of year t + 1
Moderate variable	GOVENMENT_M_N	Mean government social capital	Mean number of people in executive team who have national government working experiences at year t
Moderate variable	GOVENMENT_M_P	Mean government social capital	Mean number of people in executive team who have provincial government working experiences at year t (Robust test)
Control variable	SCALE	Scale of the enterprise	Natural logarithm of the number of the employees at the end of year t
	AGE	Age of the enterprise	Length of time from the founding year to the year t
	SOE	Nature of actual controller	Dumb variable, the variable values 1 when the actual controller is state-owned enterprises, otherwise the variable values 0
	DUAL	Dual	Dumb variable, the variable values 1 when a person is both the chairman of the board and the general manager at the end of year t, otherwise values 0
	BOARD	Board Scale	Board scale of the enterprise at the end of year t
	IND	Industry	Dumb variable, set up to refer to 2001 SFC industry classification.
	YEAR	Year	The year that the data was collected