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| Name | Definitions |
| y | Industrial Transfer | The proportion of the industrial sales value of the pollution-intensive industries in the various regions of the country. |
| LQ | Agglomeration index | Taking the location entropy of the employment of pollution-intensive industries. |
| ER | Environmental regulation | The construction project “three simultaneous” environmental investment, sewage charges income, pollution control facilities operating costs and said. |
| Trans | The transport infrastructure | Traffic density |
| K | Capital | Total investment in fixed assets |
| Tech | Technology | The number of three patent applications accepted |
| Awage | Labor cost | The average wage of workers in the post |