科研之友
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摘要
Distributing large-scale, cross-sector, and multipollutant control accountabilities for meeting the emission reduction targets in accordance with international agreements, such as the Kyoto Protocol and the Convention on Long-Range Transboundary Air Pollution, is a critical emerging issue in sustainable development today. In this paper, we present an innovative hierarchical system design for distributing the centrally optimal cross-sector multipollutant control accountabilities. We show that a decentralized hierarchical system can be designed with a bilevel planning structure to induce different industries to "voluntarily" make the centrally optimal abatement choices to meet the national or international multipollutant emission targets without using the traditional command-and-control mechanism. We also show the equivalence between the solutions to the two problems as well as the detailed steps to create a globally optimal sharing and coordinating system enabled by industries' endogenous abatement choices according to their own cost structures and technology capabilities. Based on the empirical data from Chinese industries for meeting the national emission targets of multiple pollutants specified in the 11th Five-Year Plan of China, we analyze and compare the economic and environmental performances of the proposed hierarchical system and the status-quo command-and-control system. The advantages of the proposed hierarchical system in implementation and flexibility are also discussed.
