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Deforestation Spillovers from Costa Rica...

Deforestation Spillovers from Costa Rican Protected Areas

Juan Robalino, Alexander Pfaff, Laura Villalobos LACEEP Working Paper Series WP78 Robalino-et-al-Park-Spillovers-LACEEP-WP78.Spillovers can significantly reduce or enhance the effects of land-use policies, yet there exists little rigorous evidence concerning their magnitudes. We examine how national parks within Costa Rica affect the clearing of forest nearby. We find that average deforestation spillover impacts are not significant […]

Early Days in the Certification of Loggi...

Early Days in the Certification of Logging Concessions: Estimating FSC’s Deforestation Impact in Peru and Cameroon

Stephanie Panlasigui, Jimena Rico-Straffon, Jennifer Swenson, Colby J. Loucks, Alexander Pfaff Duke Environmental & Energy Economics Working Paper Series Conservation and development agendas often are seen as in contradiction and, in the past, most forest policy was driven by only one such agenda. Yet leading conservation policies such as protected areas (PAs) increasingly are understood […]

Generating New PES Institutions and Incr...

Generating New PES Institutions and Increased Impacts in Mexico: a framed field experiment on coordination and sanctions in Matching Funds sites

Alexander Pfaff, Luz Rodriguez, Elizabeth Shapiro Draft working paper, Duke University (part of a project supported by The Tinker Foundation). While states pay landowners in the big payment-for-ecosystem-services (PES) programs, PES can be locally organized. Downstream actors, e.g., may offer incentives to upstream. Even − or especially? − with local organization, though, there may be […]

Scaling up conservation impact in Madaga...

Scaling up conservation impact in Madagascar

Theo Gimenez, Alexander Pfaff, Ranaivo Rasolofoson, Lucas Joppa Draft working paper, Duke University. Ten years ago, Madagascar’s government committed to drastically scale up the nation’s protected-area coverage from ~3% to 10% of its area. We ask how successful this PA expansion is likely to be in terms of reducing deforestation (and, thereby, increasing the conservation […]

Protected Areas’ Impacts Upon Land Cover

Protected Areas’ Impacts Upon Land Cover Within Mexico: the need to add politics and dynamics to static land-use economics

Alexander Pfaff, Franciso Santiago-Avila, Lucas Joppa Draft working paper, Duke University. Incentives for REDD − i.e., reductions in emissions from deforestation and degradation − motivate application of static economic modeling of land use to assess heterogeneity over space in the business-as-usual baselines for land use required for forest policy evaluations. That some forested locations face […]

Protected area types, strategies and imp...

Protected area types, strategies and impacts in Brazil’s Amazon: public PA strategies do not yield a consistent ranking of PA types by impact

Alexander Pfaff, Juan Robalino, Catalina Sandoval, Diego Herrera Philosophical Transactions B 2015 volume 370 (online The leading policy to conserve forest is protected areas (PAs). Yet, they are not a single tool: land users and uses vary by PA type; and public PA strategies vary in the extent of each type, as well as […]

Estimating the Impacts of Local Policy I...

Estimating the Impacts of Local Policy Innovation: the synthetic control method applied to tropical deforestation

Erin O. Sills, Diego Herrera, A. Justin Kirkpatrick, Amintas Brandao Jr., Rebecca Dickson, Simon Hall, Subhrendu Pattanayak, David Shoch, Mariana Vedoveto, Luisa Young, Alexander Pfaff PLOS ONE 2015 (forthcoming) DOI:10.1371/journal.pone.0132590 Quasi-experimental methods increasingly are used to evaluate the impacts of conservation interventions by generating credible estimates of counterfactual baselines. These methods generally require large samples […]

Protected Areas’ Impacts on Brazilian Am

Protected Areas’ Impacts on Brazilian Amazon Deforestation: examining conservation – development interactions to inform planning

Alexander Pfaff, Juan Robalino, Diego Herrera, Catalina Sandoval PLOS ONE 2015 (forthcoming) DOI:10.1371/journal.pone.0129460 Protected areas are the leading forest conservation policy for species and ecoservices goals and they may feature in climate policy if countries with tropical forest rely on familiar tools. For Brazil’s Legal Amazon, we estimate the average impact of protection upon deforestation […]

Paper Park Performance: Mexico’s Natural

Paper Park Performance: Mexico’s Natural Protected Areas in the 1990s

Allen Blackman, Alexander Pfaff, Juan Robalino Global Environmental Change 31 (2015) pp50-61 Although developing countries have established scores of new protected areas over the past three decades, they often amount to little more than ‘‘paper parks’’ that are chronically short of the financial, human, and technical resources needed for effective management. It is not clear […]

Entry Points for Considering Ecosystem S...

Entry Points for Considering Ecosystem Services within Infrastructure Planning: how to integrate conservation with development in order to aid them both

Lisa Mandle, Benjamin P. Bryant, Mary Ruckelshaus, Davide Geneletti, Joseph M. Kiesecker, Alexander Pfaff Conservation Letters 2015 (online 9/28, doi 10.1111/conl.12201) New infrastructure is needed globally to support economic development and improve human well-being. Investments that do not consider ecosystem services (ES) can eliminate these important societal benefits from nature, undermining the development benefits infrastructure […]

Evaluating Interactions of Forest Conser...

Evaluating Interactions of Forest Conservation Policies on Avoided Deforestation

Juan Robalino, Catalina Sandoval, David N. Barton, Adriana Chacon, Alexander Pfaff PLoS ONE 10(4):e0124910 (2015) doi:10.1371/journal.pone.0124910 We estimate the effects on deforestation that have resulted from policy interactions between parks and payments and between park buffers and payments in Costa Rica between 2000 and 2005. We show that the characteristics of the areas where protected […]

Evolving Protected-Areas Impacts in Pana...

Evolving Protected-Areas Impacts in Panama: impact shifts show that plans require anticipation

Akiko Haruna, Alexander Pfaff, Sander van den Ende, Lucas Joppa Environmental Research Letters 9 (2014) Protected areas (PAs) are the leading forest conservation policy, so accurate evaluation of future PA impact is critical in conservation planning. Yet by necessity impact evaluations use past data. Here we argue that forwardlooking plans should blend such evaluations with […]

Ecopayments and Deforestation in Costa R...

Ecopayments and Deforestation in Costa Rica: a nationwide analysis of PSA’s initial years

Juan Robalino, Alexander Pfaff Land Economics (2013) volume 89 (3): 432–448 We offer a nationwide analysis of the initial years of Costa Rica’s PSA program, which pioneered environmental-services payments and inspired similar initiatives. Our estimates of this program’s impact on deforestation, between 1997 and 2000, range from zero to one-fifth of 1% per year (i.e., […]

Governance, Location and Avoided Defores...

Governance, Location and Avoided Deforestation from Protected Areas: greater restrictions can have lower impact, due to differences in location

Alexander Pfaff, Juan Robalino, Eirivelthon Lima, Catalina Sandoval, Diego Herrera World Development 2014 volume 55, pp. 7–20 For Acre, in the Brazilian Amazon, we find that protection types with differences in governance, including different constraints on local economic development, also differ in their locations. Taking this into account, we estimate the deforestation impacts of these […]

On the Endogeneity of Resource Comanagem...

On the Endogeneity of Resource Comanagement: Theory and Evidence from Indonesia

Stefanie Engel, Charles Palmer, Alexander Pfaff Land Economics 2013 89(2):308-329 We examine theoretically the emergence of participatory comanagement agreements that share between state and user the management of resources and the benefits from use. Going beyond user-user interactions, our state-user model addresses a critical question—when will comanagement arise?— in order to consider the right baseline […]

Protecting forests, biodiversity, and th...

Protecting forests, biodiversity, and the climate: predicting policy impact to improve policy choice

Alexander Pfaff, Juan Robalino Oxford Review of Economic Policy, Volume 28, Number 1, 2012, pp. 164–179 Policies must balance forest conservation’s local costs with its benefits—local to global—in terms of biodiversity, the mitigation of climate change, and other eco-services such as water quality. The trade-offs with development vary across forest locations. We argue that considering […]

Contagious Development: neighbor interac...

Contagious Development: neighbor interactions in deforestation

Juan Robalino, Alexander Pfaff Journal of Development Economics 97 (2012) 427–436 We estimate neighbor interactions in deforestation in Costa Rica. To address simultaneity and the presence of spatially correlated unobservables, we measure for neighbors’ deforestation using the slopes of neighbors’ and neighbors’ neighbors’ parcels. We find that neighboring deforestation significantly raises the probability of deforestation. […]

Policy Impacts on Deforestation: Lessons...

Policy Impacts on Deforestation: Lessons Learned from Past Experiences to Inform New Initiatives

Alexander Pfaff, Erin O. Sills, Gregory S. Amacher, Michael J. Coren, Kathleen Lawlor, Charlotte Streck Report from the Nicholas Institute for Environmental Policy Solutions, Duke University (with the support of the Packard Foundation) National and international efforts within the last few decades to reduce forest loss, while having some impact, have failed to substantially slow […]

Global protected area impacts

Global protected area impacts

Lucas N. Joppa, Alexander Pfaff Proceedings of the Royal Society B 2010 doi:10.1098/rspb.2010.1713 Protected areas (PAs) dominate conservation efforts. They will probably play a role in future climate policies too, as global payments may reward local reductions of loss of natural land cover. We estimate the impact of PAs on natural land cover within each […]

Indigenous Lands, Protected Areas, and S...

Indigenous Lands, Protected Areas, and Slowing Climate Change

Taylor H. Ricketts, Britaldo Soares-Filho, Gustavo A.B. da Fonseca, Daniel Nepstad, Alexander Pfaff, Annie Petsonk, Anthony Anderson, Doug Boucher, Andrea Cattaneo, Marc Conte, Ken Creighton, Lawrence Linden, Claudio Maretti, Paulo Moutinho, Roger Ullman, Ray Victurine PLoS Biol 2010 8(3): e1000331. doi:10.1371/journal.pbio.1000331 Forest clearing and degradation account for roughly 15% of global greenhouse gas emissions, more […]

Reassessing the forest impacts of protec...

Reassessing the forest impacts of protection: The challenge of nonrandom location and a corrective method

Lucas Joppa, Alexander Pfaff Ann. N.Y. Acad. Sci. 1185 (2010) 135–149 Protected areas are leading tools in efforts to slow global species loss and appear also to have a role in climate change policy. Understanding their impacts on deforestation informs environmental policies. We review several approaches to evaluating protection’s impact on deforestation, given three hurdles […]

Park Location Affects Forest Protection:...

Park Location Affects Forest Protection: Land Characteristics Cause Differences in Park Impacts across Costa Rica

Alexander Pfaff, Juan Robalino, G. Arturo Sanchez-Azofeifa, Kwaw S. Andam, Paul J. Ferraro The B.E. Journal of Economic Analysis & Policy: Vol. 9: Iss. 2 (Contributions), Article 5. To support conservation planning, we ask whether a park’s impact on deforestation rates varies with observable land characteristics that planners could use to prioritize sites. Using matching […]

High and Far: Biases in the Location of ...

High and Far: Biases in the Location of Protected Areas

Lucas N. Joppa, Alexander Pfaff PLoS ONE 2009 4(12): e8273. doi:10.1371/journal.pone.0008273 Background: About an eighth of the earth’s land surface is in protected areas (hereafter ‘‘PAs’’), most created during the 20th century. Natural landscapes are critical for species persistence and PAs can play a major role in conservation and in climate policy. Such contributions may […]

Human choices and policies’ impacts on e

Human choices and policies’ impacts on ecosystem services: improving evaluations of payment and park effects on conservation and carbon

Alexander Pfaff, Juan Robalino Engel, S. and C. Palmer, editors, “Avoided Deforestation: Prospects for Mitigating Climate Change”, Routledge Explorations in Environmental Economics 2009 This chapter conveys why human choices complicate correct evaluations of impacts. Unobservable land choices, choices affecting policy location and interactions among choices complicate both ex post impact evaluation and ex ante policy […]

Measuring the effectiveness of protected...

Measuring the effectiveness of protected-area networks in reducing deforestation

Kwaw Andam, Paul Ferraro, Alexander Pfaff, Juan Robalino, G. Arturo Sanchez-Azofeifa PNAS 105(42):16089-16094 Global efforts to reduce tropical deforestation rely heavily on the establishment of protected areas. Measuring the effectiveness of these areas is difficult because the amount of deforestation that would have occurred in the absence of legal protection cannot be directly observed. Conventional […]