Browsing by Author "Pattanayak, SK"

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    Ecosystem change and human health: implementation economics and policy.
    (Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2017-06) Pattanayak, SK; Kramer, RA; Vincent, JR
    Several recent initiatives such as Planetary Health, EcoHealth and One Health claim that human health depends on flourishing natural ecosystems. However, little has been said about the operational and implementation challenges of health-oriented conservation actions on the ground. We contend that ecological-epidemiological research must be complemented by a form of implementation science that examines: (i) the links between specific conservation actions and the resulting ecological changes, and (ii) how this ecological change impacts human health and well-being, when human behaviours are considered. Drawing on the policy evaluation tradition in public economics, first, we present three examples of recent social science research on conservation interventions that affect human health. These examples are from low- and middle-income countries in the tropics and subtropics. Second, drawing on these examples, we present three propositions related to impact evaluation and non-market valuation that can help guide future multidisciplinary research on conservation and human health. Research guided by these propositions will allow stakeholders to determine how ecosystem-mediated strategies for health promotion compare with more conventional biomedical prevention and treatment strategies for safeguarding health.This article is part of the themed issue 'Conservation, biodiversity and infectious disease: scientific evidence and policy implications'.
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    Experimental evidence on promotion of electric and improved biomass cookstoves
    (Proceedings of the National Academy of Sciences) Pattanayak, SK; Jeuland, M; Lewis, JJ; Usmani, F; Brooks, N; Bhojvaid, V; Kar, A; Lipinski, L; Morrison, L; Patange, O; Ramanathan, N; Rehman, IH; Thadani, R; Vora, M; Ramanathan, V
    Improved cookstoves (ICS) can deliver “triple wins” by improving household health, local environments, and global climate. Yet their potential is in doubt because of low and slow diffusion, likely because of constraints imposed by differences in culture, geography, institutions, and missing markets. We offer insights about this challenge based on a multiyear, multiphase study with nearly 1,000 households in the Indian Himalayas. In phase I, we combined desk reviews, simulations, and focus groups to diagnose barriers to ICS adoption. In phase II, we implemented a set of pilots to simulate a mature market and designed an intervention that upgraded the supply chain (combining marketing and home delivery), provided rebates and financing to lower income and liquidity constraints, and allowed households a choice among ICS. In phase III, we used findings from these pilots to implement a field experiment to rigorously test whether this combination of upgraded supply and demand promotion stimulates adoption. The experiment showed that, compared with zero purchase in control villages, over half of intervention households bought an ICS, although demand was highly price-sensitive. Demand was at least twice as high for electric stoves relative to biomass ICS. Even among households that received a negligible price discount, the upgraded supply chain alone induced a 28 percentage-point increase in ICS ownership. Although the bundled intervention is resource-intensive, the full costs are lower than the social benefits of ICS promotion. Our findings suggest that market analysis, robust supply chains, and price discounts are critical for ICS diffusion.
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    Local Uses of Parks: Uncovering Patterns of Household Production from Forests of Siberut, Indonesia
    (Conservation and Society, 2003) Pattanayak, SK; Sills, EO; Mehta, AD; Kramer, RA
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    NGOs and the effectiveness of interventions
    (WIDER Working Paper, 2018-05-31) Usmani, F; Jeuland, MA; Pattanayak, SK
    Interventions in remote, rural settings face high transaction costs. We develop a model of household decision-making to evaluate how non-governmental organizations (NGOs) address these implementation-related challenges and influence intervention effectiveness. To test our model’s predictions, we create a sample of observationally similar Indian villages that differ in their prior engagement with a local development NGO. In partnership with this NGO, we then stratify a randomized technology promotion intervention on this institutional variable. We uncover a large, positive, and statistically significant ‘NGO effect’: prior engagement with the NGO increases the effectiveness of our intervention by at least 30 per cent. Our results have implications for the generalizability of experimental research conducted jointly with NGOs. In particular, attempts to scale-up findings from such work may prove less successful than anticipated if the role of NGOs is insufficiently understood. Alternatively, policy makers looking to scale-up could achieve greater success by enlisting trusted local partners.
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    Seeing the forest for the fuel
    (Environment and Development Economics, 2004-02-01) Pattanayak, SK; Sills, EO; Kramer, RA
    We demonstrate a new approach to understanding the role of fuelwood in the rural household economy by applying insights from travel cost modeling to author-compiled household survey data and meso-scale environmental statistics from Ruteng Park in Flores, Indonesia. We characterize Manggarai farming households' fuelwood collection trips as inputs into household production of the utility yielding service of cooking and heating. The number of trips taken by households depends on the shadow price of fuelwood collection or the travel cost, which is endogenous. Econometric analyses using truncated negative binomial regression models and correcting for endogeneity show that the Manggarai are 'economically rational' about fuelwood collection and access to the forests for fuelwood makes substantial contributions to household welfare. Increasing cost of forest access, wealth, use of alternative fuels, ownership of kerosene stoves, trees on farm, park staff activity, primary schools and roads, and overall development could all reduce dependence on collecting fuelwood from forests. © 2004 Cambridge University Press.
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    The Price of Purity: Willingness to pay for air and water purification technologies in Rajasthan, India
    (Environmental and Resource Economics) Shannon, Alexandra; Usmani, F; Pattanayak, SK; Jeuland, MA
    Diarrheal illnesses and acute respiratory infections are among the top causes for premature death and disability across the developing world, and adoption of various technologies for avoiding these illnesses remains extremely low. We exploit data from a unique contingent valuation experiment to consider whether households in rural Rajasthan are unwilling to make investments in "domain-specific" environmental health technologies when faced with health risks in multiple domains. Results indicate that demand for water-related risk reductions is higher on average than demand for air-related risk reduction. In addition, households' private health benefits from mitigating diarrheal (respiratory) disease risks are higher (no different) when community-level air pollution risks, rather than community-level water pollution risks, have previously been mitigated. This asymmetric response cannot fully be explained by survey order effects or embedding, but rather suggests that that the broader health environment and the salience of particular risks may be important in households' decision to adopt environmental health technologies.
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    What are Households Willing to Pay for Improved Water Access? Results from a Meta-Analysis
    (Ecological Economics, 2017-06-01) Van Houtven, GL; Pattanayak, SK; Usmani, F; Yang, JC
    © 2016Although several factors contribute to low rates of access to improved water and sanitation in the developing world, it is especially important to understand and measure household demand for these services. One valuable source of information regarding demand is the growing empirical literature that has applied stated preference methods to estimate households’ willingness to pay (WTP). Because it is difficult to generalize and support planning based on this scattered literature, we conduct a meta-analysis to take stock of the worldwide sample of household WTP for improved drinking water services. Using 171 WTP estimates drawn from 60 studies, we first describe this sample and then examine the potential factors that explain variation in WTP estimates. Our results suggest that households are willing to pay between approximately $3 and $30 per month for improvements in water access. Specifically, in line with economic theory and intuition, WTP is sensitive to scope (the magnitude of improvement in drinking water services), as well as household income, and stated-preference elicitation method. We demonstrate how our results can be used to predict household-level WTP for selected improvements in drinking water access in regions with low coverage, and find that private benefits exceed the cost of provision.
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    Worth of watersheds: A producer surplus approach for valuing drought mitigation in Eastern Indonesia
    (Environment and Development Economics, 2001-02-01) Pattanayak, SK; Kramer, RA
    This study combines hydrological modeling with applied micro-econometric techniques to value a complex ecosystem service: drought mitigation provided by tropical forested watersheds to agrarian communities. Spatial variation in current base-flow allows estimation of drought mitigation values as the marginal profit accruing to agricultural households. The paper shows that this uncommon focus on producer (not consumer) surplus measures is appropriate for valuation as long as markets for commodities related to the environmental services are complete. For the typical household, the estimated marginal profit is positive, validating the central hypothesis that baseflow makes positive contributions to agricultural profits. There is some evidence, however, that increased watershed protection will increase profits through greater baseflow only in watersheds with a unique mix of physio-graphic and climatic features. The paper evaluates and provides some support for the hypothesis, put forward by hydrological science and the Indonesian Government, that protected watersheds can supply latent and unrecognized ecosystem services to local people.