Table 2 List of variables of QAP method.
From: Spatial network analysis of green electricity efficiency dynamics in the Yellow River Basin cities
Driving factor | Define | Unit |
|---|---|---|
Geographical adjacency(Geo) | The urban geographical adjacency matrix, with adjacency set as 1 and non-adjacency set as 0 | – |
Differences in economic growth(Pgdp) | Per capita GDP | Yuan |
Differences in industrial structure(Ind) | The proportion of the added value of the secondary industry to GDP | % |
Differences in environmental regulation intensity(Env) | The proportion of the frequency of 'environmental protection' related terms in the government work report to the total number of words | % |
Differences in technological expenditure levels(Tech) | The proportion of technology expenditure to GDP | % |
Differences in average temperatures(Tem) | The annual average temperature of the city | °C |
