1. Brookshire, D.S., and D.L. Coursey. (1987). ?Measuring the Value of a Public Good: An Empirical Comparison of Elicitation Procedures,?American Economic Review 77, 554?66.
2. Coursey, D.L., J.L. Hovis, and W.D. Schulze. (1987). ?The Disparity Between Willingness to Accept and Willingness to Pay Measures of Value,?Quarterly Journal of Economics 102, 679?90.
3. Cummings, R.G., D.S. Brookshire, and W.D. Schulze (eds.). (1986).Valuing Environmental Goods: An Assessment of the Contingent Valuation Method. Totowa, NJ: Rowan & Allenhald.
4. Dalvi, M.Q. (1988).The Value of Life and Safety: A Search for a Consensus Estimate. London: Department of Transport.
5. Dubourg, W.R., M.W. Jones-Lee, and G. Loomes. (1993). ?The Contingent Valuation of Transport Safety: Imprecise Preferences and the Disparity Between Willingness-to-Pay and Willingness-to-Accept,? CSERGE Discussion Paper GEC93.16, Centre for Social and Economic Research on the Global Environment, University College London and University of East Anglia.