Research Article

[Retracted] Analysis on the Development of Smart City of Big Cities in China and Its Effect to Economic Structure Based on Entropy Method

Table 3

SES model.

Primary indexSecondary index

Smart agricultureTotal power of agricultural machineryY1
The area of machine-cultivated land.Y2
Machine-sowed land area
Machine harvesting area
Number of large and medium-sized tractors
Agricultural drainage and irrigation diesel engine
Water saving irrigation machinery

Smart industryMedical and pharmaceutical products manufacturing new products
Medical and pharmaceutical products manufacturing output value of new products
Manufacture of aircrafts and spacecrafts and related equipment new products
Manufacture of aircrafts and spacecrafts and related equipment output value of new products
Manufacture of electronic equipment and communication equipment new products
Manufacture of electronic equipment and communication equipment output value of new product
New products of manufacture of computer and office equipments
Manufacture of computer and office equipment output value of new products
Manufacture of medical equipment and measuring instrument new products
Manufacture of medical equipments and measuring instrument output value of new

Smart economyTelecom business income
Number of people in information transmission, computer services, and software industry
Tens of thousands of mobile phone users
Inclusive financial index
Coverage of digital finance
Depth of use of digital finance
Digitalization degree of digital finance
Online mobile payment level