1. Judith M. Dean: Trade and Environment: A Survey of the Literature, World Bank Policy Research Working Paper, No. 966 (1992); cf. also World Bank Discussion Papers, No. 159 (1992): International Trade and the Environment, pp. 15–28.
2. M. Rauscher: International Trade, Factor Movements, and the Environment, Oxford 1997.
3. Adam B. Jaffe et al.: Environmental Regulation and the Competitiveness of the United States Manufacturing: What Does the Evidence Tell Us, in: Journal of Economic Literature, Vol. 33 (1995), No. 1, pp. 132–163.
4. Joseph P. Kalt: The Impact of Domestic Regulatory Policies on International Competitiveness, Harvard Institute of Economic Research, Discussion Paper No. 1411 (1985).
5. European Commission: Statements on Sustainable Development, 1997, p. 17.