[Retracted] Research on Crude Oil Trade Procurement Model Based on DEA-Malmquist Algorithm

Table 1

Input and output indicators for the crude oil trade procurement model.

Index	Name	Reflect the situation
Input index	Proportion of R&D personnel	Reflect the structure of R&D personnel
	The proportion of masters and above	Reflect the structure of highly educated personnel and the overall quality of employees
	R&D expenditure	It reflects the scale of R&D investment
	R&D investment intensity	It reflects the R&D input level of the enterprise after removing the influence of scale
Output indicators	Growth rate of operating revenue	It reflects the growth rate of business income brought by enterprise R&D activities
	Net profit	Reflect the profit brought by the enterprise's R&D activities
	Proportion of technical assets	Reflect the proportion of intangible assets in the total assets to measure the overall quality of enterprise assets
	Capital accumulation rate	Reflect the change of owner's equity caused by enterprise's R&D activities