JEL分类号

Q Agricultural and Natural Resource Economics • Environmental and Ecological Economics

  • 总体
    • Q00 General
      • Q00 General
    • Q01 Sustainable Development
      • Q01 Sustainable Development
    • Q02 Commodity Markets
      • Q02 Commodity Markets
    • Q1 Agriculture
    • Q2 Renewable Resources and Conservation
    • Q3 Nonrenewable Resources and Conservation
    • Q4 Energy
    • Q5 Environmental Economics