- ———. 1995b. Conservation Reserve Program Summary File (Stock # 96004). Washington, D.C.: USDA Economic Research Service.
Paper not yet in RePEc: Add citation now
- ———. 1998. Annual Report of Lands under Control of the U.S. Fish and Wildlife Service as of Sept. 30, 1998. Washington, D.C.: United States Department of the Interior, Fish and Wildlife Service.
Paper not yet in RePEc: Add citation now
- ———. 1998. Land Areas Report. áhttp:// www.fs.fed.us/land/staff/lar/LAR98/ñ (5/00).
Paper not yet in RePEc: Add citation now
- ———. 1998. State Forestry Statistics: 1998 Report. Washington, D.C.: NASF.
Paper not yet in RePEc: Add citation now
- ———. 1998. State Table 1. CRP Acreage and Rental Payments with Sign up 18. áhttp:/ / www.fsa.usda.gov/DAFP/cepd/18thcrp/ table 1.htmñ (5/00).
Paper not yet in RePEc: Add citation now
- ———. 1999. Statistical Abstract of the United States, 119th edition. Washington, D.C.: U.S. Dept. of Commerce, Economics and Statistics Administration, Bureau of the Census. ———. 2000. áhttp:/ /www.census.govñ (8/00).
Paper not yet in RePEc: Add citation now
- ———. 2000. State Park Statistics. áhttp://www. indiana.edu/naspad/statistics.htmlñ (9/00).
Paper not yet in RePEc: Add citation now
- ———. 2000. Threatened and Endangered Species System (TESS). áhttp:/ /ecos.fws.gov/ñ (6/ 00).
Paper not yet in RePEc: Add citation now
- ———. 2001. ‘‘Fixed and Random Effects in Nonlinear Models.’’ New York University, Leonard N. Stern School Finance Department Working Paper 01-01.
Paper not yet in RePEc: Add citation now
Albers, H. J. 1996. ‘‘Modeling Tropical Forest Management: Spatial Interdependence, Irreversibility and Uncertainty.’’ Journal of Environmental Economics and Management 30 (1): 73–94.
- Ando, A. W., J. Camm, S. Polasky, and A. Solow. 1998. ‘‘Species Distributions, Land Values, and Ef cient Conservation.’’ Science 279: 2126–28.
Paper not yet in RePEc: Add citation now
Andreoni, James. 1989. ‘‘Giving with Impure Altruism: Applications to Charity and Ricardian Equivalence.’’ Journal of Political Economy 97 (6): 1447–58.
- Association for Biodiversity Information (ABI). 2000. NatureServe: An Online Encyclopedia of Life. áhttp://www.natureserve.org/ñ (10/ 00).
Paper not yet in RePEc: Add citation now
- Average Value Per Acre of Farm Real Estate by Counties, Selected Years: 1850–1992. Stock # 87012. Washington, D.C.: USDA, Economic Research Service.
Paper not yet in RePEc: Add citation now
- Bates, Sylvia K. 1989. National Directory of Conservation Land Trusts, 3rd ed. Alexandria, Va.: Land Trust Exchange.
Paper not yet in RePEc: Add citation now
- Cable News Network. 2001. President Results Summary for All States. Downloaded from áhttp://www.cnn.election/2000/results/ indes.president.htmlñ (1/6/01).
Paper not yet in RePEc: Add citation now
- Cameron, A. C., and P. K. Trivedi. 1998. Regression Analysis of Count Data. Econometric Society Monographs, no. 30. New York: Cambridge University Press.
Paper not yet in RePEc: Add citation now
Economides, N., and S. Rose-Ackerman. 1993. ‘‘Differentiated Public Goods: Privatization and Optimality.’’ In Does Economic Space Matter? 111–32, ed. H. Ohta and J. F. Thisse. London, U.K.: St. Martin’s Press.
- Federal Highway Administration (FHWA). 1988.
Paper not yet in RePEc: Add citation now
- Greene, William H. 1997. Econometric Analysis, 2nd ed. Upper Saddle River, N.J.: Prentice Hall.
Paper not yet in RePEc: Add citation now
Hausman, J., B. Hall, and Z. Griliches. 1984. ‘‘Econometric Models for Count Data with an Application to the Patents—R&D Relationship. ’’ Econometrica 52 (4): 909–38.
Kingma, Bruce R. 1989. ‘‘An Accurate Measurement of the Crowd-Out Effect, Income Effect, and Price Effect for Charitable Contributions.
- Land Trust Alliance (LTA). 1999. Summary of Data from the 1998 National Land Trust Census. áhttp://www.lta.org/censum.htmlñ (12/ 99).
Paper not yet in RePEc: Add citation now
Mankiw, N. Gregory, and Michael D. Whinston. 1986. ‘‘Free Entry and Social Inef ciency.’’ Rand Journal of Economics 17 (1): 48–58.
- National Agricultural Statistics Service (NASS). 1999. Land Value: Final Estimates by States, 1994–98. Statistical Bulletin No. 957. Washington, D.C.: U.S. Department of Agriculture, Agricultural Statistics Board, National Agricultural Statistics Service.
Paper not yet in RePEc: Add citation now
- National Association of State Foresters (NASF). 1988. State Forestry Statistics: 1988 Report. Washington, D.C.: NASF.
Paper not yet in RePEc: Add citation now
- National Association of State Park Directors (NASPD). 1989. State Park Statistics. Provided by Prof. Daniel D. McLean at the University of Indiana, Bloomington, Ind.
Paper not yet in RePEc: Add citation now
- National Park Service. 1998. National Park Service Acreage by Park: 1998. áhttp:/ /www.nps. gov/ñ (10/00).
Paper not yet in RePEc: Add citation now
- Of ce of Highway Policy Information, Federal Highway Administration (OHPI/FHWA). 1998. Highway Statistics 1998. Washington, D.C.: U.S. Department of Transportation, Federal Highway Administration.
Paper not yet in RePEc: Add citation now
Polasky, S., J. Camm and B. Garber-Yonts. 2001. ‘‘Selecting Biological Reserves Cost-Effectively: An Application to Terrestrial Vertebrate Conservation in Oregon.’’ Land Economics 77 (Feb.): 68–78.
- Scott, J. Michael, Robbyn J. F. Abbitt, and Craig R. Groves. 2001. ‘‘What Are We Protecting? 79(3) Albers and Ando: State-Level Variation in the Number of Land Trusts 327 The United States Conservation Portfolio.’’ Conservation Biology in Practice 2 (1): 18– 19.
Paper not yet in RePEc: Add citation now
- Shafer, C. L. 1990. Nature Reserves: Island Theory and Conservation Practice. Washington, D.C.: Smithsonian Institution Press.
Paper not yet in RePEc: Add citation now
Simon, Benjamin M., Craig S. Leff, and Harvey Doerksen. 1995. ‘‘Allocating Scarce Resources for Endangered Species Recovery.’’ Journal of Policy Analysis and Management 14 (3): 415–32.
- Soule, Michael E., ed. 1986. Conservation Biology: The Science of Scarcity and Diversity. Sunderland, Mass.: Sinauer Associates, Inc.
Paper not yet in RePEc: Add citation now
- StataCorp. 1999. STATA Statistical Software: Release 6.0. College Station, Tex.: Stata Corporation.
Paper not yet in RePEc: Add citation now
- Stein, Bruce A., Lynn S. Kutner, and Jonathan S. Adams, eds. 2000. Precious Heritage: The Status of Biodiversity in the United States. New York: Oxford University Press.
Paper not yet in RePEc: Add citation now
Tirole, Jean. 1988. The Theory of Industrial Organization. Cambridge, Mass.: MIT Press.
- United States Bureau of the Census (USBC). 1991. Statistical Abstract of the United States, 111th edition. Washington, D.C.: U.S. Dept. of Commerce, Economics and Statistics Administration, Bureau of the Census.
Paper not yet in RePEc: Add citation now
- United States Department of Agriculture, Forest Service. 1988. Land Areas of the National Forest System as of September 30, 1988. Washington, D.C.: USDA Forest Service.
Paper not yet in RePEc: Add citation now
- United States Department of Agriculture, Natural Resources Conservation Service (USDA/ NRCS). 2000. Acreage and Percentage of Non-Federal Land Developed (Product ID# 5006). Downloaded from áhttp://www.nhq. nrcs.usda.gov/land/meta/t5846.htmlñ (5/22/ 01).
Paper not yet in RePEc: Add citation now
- United States Department of Agriculture, Natural Resources Conservation Service, Watersheds and Wetlands Division (USDA/NRCS). 1988. Total WRP Acres Enrolled. Map ID: 5108. Washington, D.C.: USDA Natural Resources Conservation Service.
Paper not yet in RePEc: Add citation now
- United States Environmental Protection Agency (USEPA). 2000. Surf Your Watershed. áhttp:// www.epa.gov/surf3/locate/ñ (9/00).
Paper not yet in RePEc: Add citation now
- United States Fish and Wildlife Service, Division of Realty (USFWS). 1988. Annual Report of Lands under Control of the U.S. Fish and Wildlife Service as of Sept. 30, 1988. Washington, D.C.: U.S. Department of the Interior, Fish and Wildlife Service.
Paper not yet in RePEc: Add citation now
- United States Geological Service (USGS). 2002. Hydrologic Unit Maps. áhttp://water.usgs. gov/GIS/huc.html.ñ (3/02).
Paper not yet in RePEc: Add citation now
- Washington County Land Trust Coalition. 2002.
Paper not yet in RePEc: Add citation now
- Weber, Ray. 2000. 50 states.com. áhttp://www. 50states.com.ñ (8/00) Santa Clarita, Calif.: Weber Publications.
Paper not yet in RePEc: Add citation now
- Wright, R. Gerald, J. Michael Scott, Shannon Mann, and Michael Murray. 2001. ‘‘Identifying Unprotected and Potentially at Risk Plant Communities in the Western USA.’’ Biological Conservation 98 (1): 97–106.
Paper not yet in RePEc: Add citation now
Wu, J., and W. G. Boggess. 1999. ‘‘The Optimal Allocation of Conservation Funds.’’ Journal of Environmental Economics and Management 38 (3): 302–21.