Collaborative Innovation Efficiency and Influencing Factors of Civil-Military Integration Enterprises

Table 2

Input-output indicator system.

Stage	Index category	Indicator name	Indicator symbol
Technology R&D	Input variable	Proportion of R&D personnel (%)
		Proportion of R&D investment to operating income（%）
	Output variable	Number of patent applications (item)
Technology transformation	Input variable	Number of employees at year end
		Increase in intangible assets
		Number of patent applications (item)
	Output variable	Operating income (Ten thousand yuan)