My research falls into three areas:
I also invite students to work on the following relatively clean and comprehensive data sets to answer questions in one of the three domains listed above:
EVALUATION OF FOREST ECOSYSTEM SERVICES
This domain is in area of research that has witnessed major policy innovations and, thereby, generated significant research needs – evaluation of forest ecosystem services. We have applied rigorous empirical methods to systematically identify, quantify, and monetize the ‘natural insurance’ from forest protection. The initial body of work focused on non-market services from tropical forests and included flood protection, soil conservation, drought reduction, non-timber forest products, and household fuelwood consumption. We have expanded this conceptual and methodological strategy to consider non-timber services in the U.S., including carbon-sequestration, water quality, forest aesthetics, and wildlife habitat protection. Top?
PRACTICAL METHODS FOR ENVIRONMENTAL POLICY ANALYSIS
This domain relates to developing practical methods for environmental policy analysis. For example, we have developed a new ‘benefits transfer’ methodology for the measurement of non-market benefits using an approach titled ‘preference calibration’. This approach improves on existing practices for benefits transfer by tying economic theory (i.e., constrained utility maximization logic) to benefits analysis and by applying information from empirical valuation studies to numerically calibrate preference functions rather than relying on the more commonly used unit-value approach. Subsequently, the calibration logic has been extended to estimation of parameters of utility function by applying a method of moments approach to meta-data sets on economic values for changes in water quality, air quality and mortality risk. Top?
ENVIRONMENTAL EPIDEMIOLOGY
This domain addresses the economics and geography of environmental epidemiology, focusing on diseases such as malaria and diarrhea that are substantively affected by environmental degradation and that contribute significantly to the global disease burden. This research addresses three types of policy questions:
(a) what are the geographical and ecological determinants of diseases and behaviors, controlling for socio-economic factors,
(b) what are the socio-economic consequences of diseases, and
(c) what are the policy options for influencing household and community behavior to minimize disease exposures and/or mitigate disease outcomes.