Match List I with List II:
| List I | List II |
| (a) Contingent Valuation Method (CVM) | (1) Estimates the value of environmental goods based on people's willingness to pay in hypothetical scenarios. |
| (b) Travel Cost Method (TCM) | (2) Estimates the value of environmental goods based on the costs individuals incur to access or visit them. |
| (c) Hedonic Pricing Method (HPM) | (3) Estimates the value of environmental goods based on the implicit prices revealed in the market for related goods. |
| (d) Choice Experiment Method (CEM) | (4) Estimates the value of environmental goods by presenting individuals with choices and assessing their preferences. |
1
a-1, b-2, c-3, d-4
2
a-4, b-1, c-3, d-2
3
a-2, b-3, c-1, d-4
4
a-3, b-2, c-4, d-1