Table 2 Index system for the evaluation of the level of development of the digital economy in an industry.

From: The impact of digital economy on green total factor productivity considering the labor-technology-pollution factors

Primary indicators

Secondary indicators

Meaning of indicators

Data production capacity

Number of new products developed

Number of new product development activities in the industry; a larger number of developments means that the industry's scientific research activities are more abundant, which, in turn, will generate more R&D data

Operating expenses

This includes selling expenses, management expenses, and financial expenses; more expenses mean more frequent business activities by an enterprise, thus allowing more abundant business data to be collected

Total current assets

Total current assets can reflect the level of production activities in the industry; the higher the level of production activities, the greater the amount of valuable data generated

Data-use capabilities

Percentage of highly qualified personnel

Measured by the proportion of PhDs and masters in R&D organizations with respect to the total workforce; the more highly qualified personnel there are, the stronger the ability to integrate, analyze, and process data will be

Inventory of machinery and equipment

The data measured in this study reflect the level of investment in machinery and equipment in the industry; the greater the inventory of machinery and equipment, the higher the level of computing power and the stronger the data processing capabilities

Number of computers per 100 people

This reflects the level of computer penetration in the industry; the greater the number of computers per 100 people is, the higher the level of digitization in the industry will be

Level of information management

Share of enterprises with electronic financial management

Share of enterprises with informatized financial management; the greater the share, the more efficient the financial management, which, in turn, proves that the industry has a higher level of digitization

Share of enterprises with electronic purchasing and inventory management

Share of enterprises that have realized the informatization of purchasing and inventory management; the rest of the explanation is the same as above

Percentage of enterprises with computerized manufacturing management

Percentage of enterprises with computerized manufacturing management; the rest of the explanation is the same as above

Share of enterprises with computerized logistical and distribution management

Share of enterprises with computerized logistical and distribution management; the rest of the explanation is the same as above

Percentage of enterprises that have computerized their customer relationship management

Percentage of enterprises that have computerized customer relationship management; the rest of the explanation is the same as above

Percentage of enterprises that have computerized human resource management

Percentage of enterprises that have implemented the informatization of human resource management; the rest of the explanation is the same as above