Sellers retain possession of their land, but it can never be developed.
Survey respondents evaluate five hypothetical offers to sell development rights, as if they were serving on the farmland preservation board. Each respondent makes a series of pairwise choices between farms, portrayed both graphically and verbally. Each mouse click on the image of a preferred farm is trapped by a CGI function in the script and passed to an insertion sort algorithm which determines the next logical comparison pair and displays it using standard HTML table formatting. A statistical analysis of preliminary response data yields plausible preference weights for the farm attributes, demonstrating the technical feasibility of this survey technique. 1 Associate Professor of environmental and resource economics and Computer Systems Administrator, respectively, College of Agricultural Sciences, University of Delaware, Newark, DE 19717-1303.