Evolution of the Coupling Coordination between the Marine Economy and Digital Economy

Accelerating the high-quality integrated development of digital economy and marine is vital for in coastal countries regions. However, few scholars examined such coordination. Here, based on panel data from 2012 to 2019 spatial scale China’s provinces cities, entropy method, coupling harmonious degree model (CCDM), Theil index, Tobit were adopted measure calculate interval index differences economic quality level. Exploring coordination between economy, difference impact factors also important. First, we found that level moved forward waves spiraled up, but was relatively low. Second, gradually increased. Third, gap regional obvious. Fourth, main affected infrastructure construction, industry, industrial digitalization. The results have value sustainable