Performance Indicators for Natural Resource and Environmental Policy: Contributions from American Institutional Law and Economics

Article published in the Duke Environmental Law & Policy Forum

A SPLIT-SAMPLE TEST OF EXPERIMENTAL DESIGNS FOR STATED CHOICE MODELS OF ENVIRONMENTAL VALUATION

A stated choice model is used to estimate wetland mitigation preferences. In a split sample mail survey, a main effects design is compared to a randomized design. Although randomized designs estimate main effects less efficiently, several policy relevant interactions were found to be significant, suggesting some merits of randomized designs.Environmental Economics and Policy,

Stated Choice Experiments with Complex Ecosystem Changes: The Effect of Information Formats on Estimated Variances and Choice Parameters

Stated choice experiments about ecosystem changes involve complex information. This study examines whether the format in which ecosystem information is presented to respondents affects stated choice outcomes. Our analysis develops a utility-maximizing model to describe respondent behavior. The model shows how alternative questionnaire formats alter respondents’ use of filtering heuristics and result in differences in preference estimates. Empirical results from a large-scale stated choice experiment confirm that different format presentations of the same information lead to different preference parameter estimates and error variances. A tabular format results in choice parameter estimates with statistically smaller variances than parameters estimated from data obtained with a text-based format. A text-based format also appears to induce greater use of decision heuristics than does a tabular format.choice experiments, heuristics, stated preference, valuation, web surveys, wetland mitigation, Crop Production/Industries, Demand and Price Analysis,

UNTYING A LANCASTRIAN BUNDLE: ECOSYSTEM VALUATION IN WETLAND MITIGATION

A utility-theoretic model indicates that mitigation prices for wetland ecosystems depend on preferences and technical knowledge. Empirical analysis found gaps in respondents' knowledge about such ecosystmes. Valuing wetland types requires dealing with respondents' possible misinformation, by developing tools for informing respondents or by combining service-based valuations with valid technical data.Resource /Energy Economics and Policy,

WETLAND USES AND FUNCTIONS AS PERCEIVED BY MID-MICHIGAN RESIDENTS: QUALITATIVE RESEARCH RESULTS

The following report outlines the results of focus group discussions that were conducted to help researchers learn what it is about wetlands, wetland services, and wetland characteristics that matter to people. The participants were asked questions in the areas of natural resources, their prior knowledge of wetlands, wetland types, public policies relating to wetlands, and wetland functions. The focus group discussions reported here were the first set of qualitative discussions in the research project. The purpose of the discussions was to create a basis of information concerning the respondents' perceptions and understanding of wetland uses and functions. These initial focus groups represent a first step in a larger project that will develop and test stated preference instruments for valuing ecosystem characteristics associated with freshwater wetlands. The information on respondents' uses, perceptions, and knowledge of wetland functions will be used to develop survey instruments and serve as the starting point for out wetlands research.Land Economics/Use,

SPLIT-SAMPLE TESTS OF "DON'T KNOW" AND "INDIFFERENT" RESPONSES IN AN ATTRIBUTE BASED CHOICE MODEL

stated preference, contingent valuation, no opinion, internet survey, Research Methods/ Statistical Methods,

Explaining energy conservation and environmental citizenship behaviors using the value-belief-norm framework

Despite decades of research, uncertainty remains about what motivates individuals to engage in pro-environmental behavior. The multifaceted and complex nature of energy conservation, like other forms of pro-environmental behavior, still poses a challenge to efforts at accurately explaining or predicting it. This paper examines the extent to which variables in the value-belief-norm framework are able to explain engagement in energy conservation and environmental citizenship behavior in an institutional setting. The results indicate that value-belief-norm constructs, which largely reflect environmental considerations, were more successful at explaining subjects’ pro-environmental citizenship behavior than their energy conservation behavior. Individuals’ personal norms and self-transcendence values were found to be the most influential precursors of their pro-environmental behavior. Subjects’ behavior-specific beliefs also influenced their pro-environmental behavior and were mediated by their personal norms. The implications of our results for the design of pro–energy conservation intervention are discussed

Institutional management of greenhouse gas emissions: How much does 'green' reputation matter?

Climate Change, green reputation, conjoint analysis, Environmental Economics and Policy, Resource /Energy Economics and Policy, Q29, Q40, Q51,

Evaluation of the effects of sodium–glucose co‐transporter 2 inhibition with empagliflozin on morbidity and mortality in patients with chronic heart failure and a preserved ejection fraction: rationale for and design of the EMPEROR‐Preserved Trial

Background: The principal biological processes that characterize heart failure with a preserved ejection fraction (HFpEF) are systemic inflammation, epicardial adipose tissue accumulation, coronary microcirculatory rarefaction, myocardial fibrosis and vascular stiffness; the resulting impairment of left ventricular and aortic distensibility (especially when accompanied by impaired glomerular function and sodium retention) causes increases in cardiac filling pressures and exertional dyspnoea despite the relative preservation of left ventricular ejection fraction. Independently of their actions on blood glucose, sodium–glucose co‐transporter 2 (SGLT2) inhibitors exert a broad range of biological effects (including actions to inhibit cardiac inflammation and fibrosis, antagonize sodium retention and improve glomerular function) that can ameliorate the pathophysiological derangements in HFpEF. Such SGLT2 inhibitors exert favourable effects in experimental models of HFpEF and have been found in large‐scale trials to reduce the risk for serious heart failure events in patients with type 2 diabetes, many of whom were retrospectively identified as having HFpEF. Study design: The EMPEROR‐Preserved Trial is enrolling ≈5750 patients with HFpEF (ejection fraction >40%), with and without type 2 diabetes, who are randomized to receive placebo or empagliflozin 10 mg/day, which is added to all appropriate treatments for HFpEF and co‐morbidities. Study aims: The primary endpoint is the time‐to‐first‐event analysis of the combined risk for cardiovascular death or hospitalization for heart failure. The trial will also evaluate the effects of empagliflozin on renal function, cardiovascular death, all‐cause mortality and recurrent hospitalization events, and will assess a wide range of biomarkers that reflect important pathophysiological mechanisms that may drive the evolution of HFpEF. The EMPEROR‐Preserved Trial is well positioned to determine if empagliflozin can have a meaningful impact on the course of HFpEF, a disorder for which there are currently few therapeutic options

Evaluation of the effect of sodium–glucose co‐transporter 2 inhibition with empagliflozin on morbidity and mortality of patients with chronic heart failure and a reduced ejection fraction: rationale for and design of the EMPEROR‐Reduced trial

Drugs that inhibit the sodium–glucose co‐transporter 2 (SGLT2) have been shown to reduce the risk of hospitalizations for heart failure in patients with type 2 diabetes. In populations that largely did not have heart failure at the time of enrolment, empagliflozin, canagliflozin and dapagliflozin decreased the risk of serious new‐onset heart failure events by ≈30%. In addition, in the EMPA‐REG OUTCOME trial, empagliflozin reduced the risk of both pump failure and sudden deaths, the two most common modes of death among patients with heart failure. In none of the three trials could the benefits of SGLT2 inhibitors on heart failure be explained by the actions of these drugs as diuretics or anti‐hyperglycaemic agents. These observations raise the possibility that SGLT2 inhibitors could reduce morbidity and mortality in patients with established heart failure, including those without diabetes. The EMPEROR‐Reduced trial is enrolling ≈3600 patients with heart failure and a reduced left ventricular ejection fraction (≤ 40%), half of whom are expected not to have diabetes. Patients are being randomized to placebo or empagliflozin 10 mg daily, which is added to all appropriate treatment with inhibitors of the renin–angiotensin system and neprilysin, beta‐blockers and mineralocorticoid receptor antagonists. The primary endpoint is the time‐to‐first event analysis of the combined risk of cardiovascular death and hospitalization for heart failure, but the trial will also evaluate the effects of empagliflozin on renal function, cardiovascular death, all‐cause mortality, and recurrent hospitalization events. By adjusting eligibility based on natriuretic peptide levels to the baseline ejection fraction, the trial will preferentially enrol high‐risk patients. A large proportion of the participants is expected to have an ejection fraction < 30%, and the estimated annual event rate is expected to be at least 15%. The EMPEROR‐Reduced trial is well‐positioned to determine if the addition of empagliflozin can add meaningfully to current approaches that have established benefits in the treatment of chronic heart failure with left ventricular systolic dysfunction