EfD in Central America http://www.efdinitiative.org The Environment for Development Program for Central America works for strengthening the research capacity and the interface between academia and policy makers in the quest for sustainable development. daily 1 2007-10-02T15:00:42Z Payments for Ecosystem Services: Measurements with Impacts http://www.efdinitiative.org/research/publications/publications-repository/payments-for-ecosystem-services-measurements-with-impacts A promising concept that has received considerable attention, Payment-for-ecosystems- services has the potential to become a conventional environmental management tool. No publisher qianweng Alpízar F., A. Blackman, and A. Pfaff. 2007. "Payments for Ecological Services: Measurements with Impacts". Resources 165 Spring: 20-22. Payment for ecosystem services 2008-02-19T17:26:47Z Article Costa Rica’s Payment for Environmental Services Program: Intention, Implementation and Impact http://www.efdinitiative.org/research/publications/publications-repository/costa-rica2019s-payment-for-environmental-services-program-intention-implementation-and-impact We evaluated the intention, implementation, and impact of Costa Rica’s program of payments for environmental services (PSA), which was established in the late 1990s. Payments are given to private landowners who own land in forest areas in recognition of the ecosystem services their land provides. No publisher qianweng Sanchez, A., A. Pfaff, J. Robalino, and J. Boomhower. 2007. Costa Rica's Payment for Environmental Services Program: Intention, Implementation, and Impact. Conservation Biology 21 (5) , 1165-1173. Deforestation Ecosystems Payment for ecosystem services 2008-06-02T17:24:33Z Article Anonymity, Reciprocity, and Conformity: Evidence from Voluntary Contributions to a National Park in Costa Rica http://www.efdinitiative.org/research/publications/publications-repository/anonymity-reciprocity-and-conformity-evidence-from-voluntary-contributions-to-a-national-park-in-costa-rica The purpose of this paper is to test the absolute as well as the relative importance of these three reasons for non-selfish behavior. This is done by conducting a natural field experiment on voluntary contributions to a national park in Costa Rica. No publisher qianweng Alpízar, F., F. Carlsson, and O. Johansson-Stenman. 2007. "Anonymity, reciprocity and conformity: Evidence from voluntary contributions to a natural park in Costa Rica". Journal of Public Economics, forthcoming. Valuation Field experiments Park management 2008-04-09T12:56:58Z Article