L. Robin Keller

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Willingness-to-pay (WTP) measures of the effects of changes in health on a person's welfare are more comprehensive than traditional cost-of-illness (COI) measures, but they are sometimes difficult to obtain. The authors investigated two approaches for measuring heart patients' WTP for changes in their angina symptoms. First, actual expenditures and(More)
Both the selection of doses of pharmaceutical agents and comparisons between pharmaceutical agents have long been based on the nonquantified concept of the risk-benefit ratio. Though useful, this concept implies a data comparison that is difficult to make: the toxicity versus the efficacy of a drug compound. This research demonstrates an approach for(More)
In the context of the recent recalls of contaminated pet food and lead-painted toys in the United States, we examine patterns of risk perceptions and decisions when facing consumer product-caused quality risks. Two approaches were used to explore risk perceptions of the product recalls. In the first approach, we elicited judged probabilities and found that(More)
Through surveys of students and junior professionals and interviews with business and government executives, we studied Chinese choices and fairness perceptions in risky health and safety decisions. The survey responses were compared with American responses from an earlier study by Keller and Sarin. The survey results show that the American and Chinese(More)
Karni and Saffa [8] prove that the Becker-DeGroot-Marschak mechanism reveals a decision maker's true certainty equivalent of a lottery if and only if he satisfies the independence axiom. Segal [17] claims that this mechanism may reveal a violation of the reduction of compound lotteries axiom. This paper empirically tests these two interpretations. Our(More)
Imagine you divide three cookies between your two children, five-year-old Jack and two-year-old Jill. You might give Jack two cookies and Jill one cookie. But, then Jill will claim that this division is unfair, and will remain unconvinced even when you say that Jack is older and bigger and thus needs (and deserves) more food. In such a parental role, you(More)
This paper presents decision analysis methodology for decisions based on data from geographic information systems. The consequences of a decision alternative are modeled as distributions of outcomes across a geographic region. We discuss conditions that may conform with the decision maker’s preferences over a specified set of alternatives; then we present(More)
T paper presents a multiple-objective decision analysis approach to qualitatively and quantitatively evaluate different potassium iodide (KI) distribution plans for a hypothetical local region. We developed this approach for a U.S. National Research Council committee that was charged with figuring out the best means for protecting people against potential(More)