Invasive species are a growing threat in the United States, causing losses in biodiversity, changes in ecosystems, and impacts on economic enterprises such as agriculture, fisheries, and international trade. The costs of preventing and controlling invasive species are not well understood or...

This paper analyzes border protection policies for managing risk of unintended imports of invasive species. Previous work typically assumes invasive species risk to be exogenous and commonly known. Here, we examine cases in which endogenous actions (exporter abatement) affect risk and allow for...

Forecasts of Chinese carbon dioxide (CO2) emissions are critical to any global agreement on mitigating possible global climate change. We provide such forecasts through 2050 using a reduced form model selected using a general to simple search strategy. These estimates are the first based upon...

In 1992 the National Oceanic and Atmospheric Administration (NOAA) convened a panel of prominent social scientists to assess the reliability of natural resource damage estimates derived from contingent valuation (CV). The product of the Panel's deliberations was a report that laid out a set of...

In 1992 the National Oceanic and Atmospheric Administration (NOAA) convened a panel of prominent social scientists to assess the reliability of natural resource damage estimates derived from contingent valuation (CV). The product of the panel's deliberations was a report that laid out a set of...

The past few years have seen a highly charged debate about whether contingent valuation (CV) surveys can provide valid economic measures of people's values for environmental resources. In an effort to appraise the validity of CV measures of economic value, a distinguished panel of social...

The choice experiment elicitation format confronts survey respondents with repeated choice tasks. Particularly within the context of valuing pure public goods, this repetition raises two issues. First, does advanced awareness of multiple tasks influence stated preferences from the outset, and...

We present an experiment designed to investigate the presence and nature of ordering effects within repeated response stated preference studies. We formulate a general structural model of such effects and use this to isolate signature patterns for position-dependent effects (learning about...