Here are some from a report by the Mackinac Center for Public Policy. They got them from elsewhere. they modeled demand for public and private schools and were trying to show that having “charter” schools would not hurt the economics of public schools very much.
Source: Economics: Private and Public Choice, James D. Gwartney and Richard L. Stroup, eighth edition
1997, seventh edition 1995; primary sources: Hendrick S. Houthakker and Lester D. Taylor, Consumer
Demand in the United States, 1929-1970 (Cambridge: Harvard University Press, 1966,1970); Douglas R.
Bohi, Analyzing Demand Behavior (Baltimore: Johns Hopkins University Press, 1981); Hsaing-tai Cheng
and Oral Capps, Jr., “Demand for Fish” American Journal of Agricultural Economics, August 1988; and
U.S. Department of Agriculture.
Supply Chain and Logistics 