21. Intertemporal welfare economics and the environment (G.M. Heal).
22. National income and the environment (B. Kriström, G.M. Heal).
23. Economic growth and the environment (A. Xepapadeas).
24. CGE modeling of environmental policy and resource management (L. Bergman).
25. Calculating the costs of environmental regulation (R. Kopp, W. Pizer).
26. Environmental implications of non-environmental policies (A. Markandya).
27. International trade, foreign investment, and the environment (M. Rauscher).
28. The theory of international environmental agreements (S. Barrett).
29. Economics of biodiversity (C. Costello, S. Polasky, A.R. Solow).
30. Economics of climate change (C.D. Kolstad, M. Toman).