Abstract:

Measurement of Digital Economy Scale is the core field of digital economy research. This paper reviews methods of the development of digital economy measurement.Then on this basis，it introduces the specific application of three index compilation methods，namely，input-output method，entropy method and principal component analysis method. After that，these three methods above are respectively used to conduct a multi-dimensional assessment of China’s industrial digital economy development and provincial digital economy development. Finally，the paper will put forward corresponding policy suggestions.

Key words:

digital economy, measurement, input-output method, entropy method, principal component analysis method