Research Article
Intelligent Data Mining Based on Market Circulation of Production Factors
Table 2
List of variable relations and meanings.
| Variable type | Variable meaning | Variable value and method description |
| Dependent variable | Enterprise market performance | Market value/total assets at the end of the year | Corporate financial performance | Main business income-main business cost/main business income | Independent variable | R&D investment intensity | R&D investment/operating income | Categorical variables | Capital labor ratio | Fixed assets/labor force | Proportion of fixed assets | Net fixed assets/total assets | Proportion of R&D expenses | R&D expenses/product production costs | Proportion of R&D personnel | Number of R&D personnel/total number of employees | Control variable | Enterprise size | Natural logarithm of the company’s total assets | Assets and liabilities | Total liabilities/total assets |
|
|