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| Registros recuperados: 47 | |
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| Loomis, John B.; Bell, Paul; Cooney, Helen; Asmus, Cheryl. |
| We estimate adults’ willingness to pay (WTP) to reduce health risks to their own or other families’ infants to test for altruism. A conjoint analysis of adults paying for bottled water found marginal WTP for reduction in risk of shock, brain damage, and mortality in the cash treatment of $2, $3.70, and $9.43, respectively. In the hypothetical market these amounts were $14, $26, and $66, indicating substantial hypothetical bias, although not unexpected due to the topic of infant health. Statistical tests confirm a high degree of altruism in our WTP results, and altruism held even when real money was involved. |
| Tipo: Journal Article |
Palavras-chave: Altruism; Conjoint; Drinking water; Nitrates; Validity; Willingness to pay; Agricultural and Food Policy; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; Institutional and Behavioral Economics; I10; Q53. |
| Ano: 2009 |
URL: http://purl.umn.edu/56657 |
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| Loomis, John B.; Asmus, Cheryl; Bell, Paul. |
| The objective of this research was to estimate adults' willingness to pay to reduce health risks to their or other families's infants, the latter to test for altruism. A choice experiment was conducted by having adults pay for bottled water for infants to reduce infants' exposure to nitrates in drinking water. Since nitrates only affect infants' health, we have isolated the adults' willingness to pay just for infants' health by buying bottled water to avoid infants' nitrate intake. Respondents were separated into two treatments, one with hypothetical choices, and the other where respondents were told that one of their four choices would be binding, and they would actually buy bottled water using money given to them at the beginning of the experiment.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Altruism; Conjoint; Drinking water; Validity; Willingness to pay; Health Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/9358 |
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| Davies, Stephen P.; Loomis, John B.. |
| Many times economists are asked to estimate the demand for new consumer goods or services for which no market data exists. Typically market researchers and economists answer this challenge using surveys that ask about intended purchases (Louviere, et al. 2000) or what has become known as stated preference (SP) data. Tying this data to revealed preference (RP), or actual behavior, has been a target in a number of studies. Simplistic calibrations have been investigated in past RP-SP studies, such as Loomis, et al. 2001. This paper offers an alternative solution that allows the magnitude of the calibration correction to vary based on Klein and Sherman's (1997) Orbit procedure. This paper extends the original Orbit procedure of Klein and Sherman by... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2006 |
URL: http://purl.umn.edu/21204 |
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| Hof, John G.; Loomis, John B.. |
| A recreation allocation model is developed which efficiently selects recreation areas and degree of development from an array of proposed and existing sites. The model does this by maximizing the difference between gross recreation benefits and travel, investment, management, and site-opportunity costs. The model presented uses the Travel Cost Method for estimating recreation benefits within an operations research framework. The model is applied to selection of potential wilderness areas in Colorado. This example is then extended to show the model's capability in budget analysis and in planning to meet recreation targets. |
| Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 1983 |
URL: http://purl.umn.edu/32482 |
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| Loomis, John B.. |
| Recent efforts to refine the concept of existence value and to empirically measure it has led to an unnecessary narrowing of the concept of existence value. This paper uses the literature on public goods to argue that existence value is a much broader concept than proposed by several authors. Two commonly used but different empirical approaches to measuring existence values are compared and shown to lead to statistically different decompositions of total value between use and existence categories. |
| Tipo: Journal Article |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 1988 |
URL: http://purl.umn.edu/29068 |
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| Park, Timothy A.; Loomis, John B.. |
| This paper empirically tested the three conditions identified by McConnell for equivalence of the linear utility difference model and the valuation function approach to dichotomous choice contingent valuation. Using a contingent valuation survey for deer hunting in California, two of the three conditions were violated. Even though the models are not simple linear transforms of each other for this survey, estimates of mean willingness to pay and their associated 95% confidence intervals around the mean were quite similar for the valuation methods. |
| Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 1992 |
URL: http://purl.umn.edu/29009 |
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| Loureiro, Maria L.; Loomis, John B.. |
| In the current paper, we compare alternative approaches to incorporating uncertainty into the statistical analysis of dichotomous choice responses. In doing so, first we employ previous modelling techniques that included uncertainty of preferences, and secondly we compare the obtained results with those coming from a novel approach here developed, a finite mixture model. The finite mixture model is a very flexible framework used to deal with preference uncertainty. Our case study uses data gathered in the Prestige oil spill valuation study from Spain. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Demand and Price Analysis. |
| Ano: 2007 |
URL: http://purl.umn.edu/10003 |
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| Gonzalez-Sepulveda, Juan Marcos; Loomis, John B.. |
| The problem of endogenous stratification associated with on-site sampling has been overlooked in the Contingent Valuation Method (CVM). We find that using on-site samples of visitors overstates visitor willingness to pay (WTP) estimates relative to a household sample of visitors, and substantially overstates the unconditional population values. We provide two methods of correcting WTP of on-site samples. The uncorrected on-site sample CVM yields WTP of $132 per trip, while visitor WTP obtained from a random sample of households had a value of $66 per trip. Adaptation of choice-based sampling correction estimator to the on-site CVM data yields $73 per trip, not statistically different from the visitor value from the household survey, but significantly... |
| Tipo: Journal Article |
Palavras-chave: Contingent valuation method; Endogenous stratification; On-site sampling bias; Environmental Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/95610 |
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| Loomis, John B.; Ekstrand, Earl. |
| A split-sample design is used to test for a difference between mean willingness to pay (WTP) for protecting the Mexican spotted owl versus protecting 62 threatened/endangered species which includes the Mexican spotted owl. The multiple bounded contingent valuation method is used in a mail survey of U.S. residents. The mean WTP amounts are statistically different at the 0.1 confidence level indicating the multiple-bounded mail survey passes the scope test. The range of estimated benefits of preserving the 4.6 million acres of critical habitat for the Mexican spotted owl substantially outweighs the costs of the recovery effort. |
| Tipo: Journal Article |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 1997 |
URL: http://purl.umn.edu/30847 |
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| Loomis, John B.. |
| Economic efficiency has become more visible in national forest plans because of new planning regulations implemented by the Reagan administration. This paper investigates economic efficiency analyses and whether such information influences U.S. Forest Service decisions. The findings indicate that there are substantial errors in estimates of the net present value of wilderness and that there is no association between the sign of net present value and decision makers recommendations about wilderness designation. These findings are consistent with the hypothesis that an economic efficiency information requirement will not insure its use in decision making unless the incentives facing managers change. |
| Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 1987 |
URL: http://purl.umn.edu/32475 |
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| Registros recuperados: 47 | |
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