Economics Agglomeration 1 Asian history 1 China 1 Data envelopment analysis 1 Eastern China 1 Eco-efficiency evaluation 1 Ecological efficiency 1 Ecological protection 1 Economic and social effects 1 Economic development 1 Efficiency 1 Environmental regulations 1 Ethnic studies 1 Information technology. Information systems 1 Labor market. Labor supply. Labor demand, Including unemployment, manpower policy, occupational training, employment agencies 1 Labor systems 1 Latent Dirichlet Allocation topic model 1 Latent dirichlet allocation topic model 1 Policy control 1 Pollution control 1 Public policy 1 Qualitative comparative analysis 1 Regional studies 1 Slack-based Measure Data envelopment analysis 1 Slack-based measure data envelopment analyse 1 Social & cultural anthropology, ethnography 1 Statistics 1 Urban agglomerations 1 detection method 1