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| Registros recuperados: 61 | |
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| Hu, Wuyang; Adamowicz, Wiktor L.; Veeman, Michele M.. |
| This paper adopts an approach based on the concepts of random utility maximization and builds on the general theoretical framework of Lancaster and on the conceptual and econometric innovations of McFadden. Recent research in this area explores models that account for context effects, as well as methods for characterizing heterogeneity, response variability and decision strategy selection by consumers. This makes it possible to construct much richer empirical models of individual consumer behavior. A Bayesian approach provides a useful way to estimate and interpret models that are difficult to accomplish by conventional maximization/minimization algorithms. The application reported in the paper involves analysis of reference dependence and product... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Consumer/Household Economics. |
| Ano: 2005 |
URL: http://purl.umn.edu/19296 |
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| Adamowicz, Wiktor L.; Jennings, Sarah; Coyne, Alison. |
| The travel cost model is the standard model used in the recreation demand literature. This model assumes that the decision on the number of trips to a particular site in a given period (a season, for example) is determined at the beginning of the period. For certain types of recreation activity, this decision may be more appropriately modeled as a sequential process, in which the decision of whether or not to take each additional trip is made after previous trips have occurred. This decision is dependent on the realization of random variables on previous trips as well as travel costs. A model is developed in which the choice of a discrete number of sequentially chosen trips to a given site is specified as function of site-specific variables and variables... |
| Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 1990 |
URL: http://purl.umn.edu/32501 |
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| Hu, Wuyang; Adamowicz, Wiktor L.; Veeman, Michele M.. |
| Heterogeneous tastes across consumers can be captured by random coefficients in a mixed logit (ML) model. However, other types of factors that may not directly affect taste could cause choices to vary, such as choice context, choice task complexity, and demographic characters. This paper jointly considers taste heterogeneity around reference-dependent attributes and other choice variability through inclusion of a scale function, based on data from a stated preference experiment for bread. Results demonstrate that modeling other sources of choice variability in addition to taste heterogeneity increases the model fit, although the improvement is not dramatic. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Institutional and Behavioral Economics. |
| Ano: 2004 |
URL: http://purl.umn.edu/19954 |
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| Shapansky, Bradford; Adamowicz, Wiktor L.; Boxall, Peter C.. |
| Human values arising from forests include market and non-market values. Timber values and values of non-timber forest products traded in markets (berries, wild rice, etc.) are considered market values. Among non-market values are recreation values and values associated with wildlife harvesting by Aboriginal People. These are considered non-market because participation in these activities does not require the purchase of market based permits; prices do not function as rationing devices in these activities. In addition to non-market values arising from activities, individuals may also have values associated with forest conditions (biodiversity, etc.). These are referred to as passive use values since the value is not associated with any specific use of... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2002 |
URL: http://purl.umn.edu/24036 |
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| Swait, Joffre; Adamowicz, Wiktor L.. |
| The psychology, the marketing consumer behavior and, to a much smaller extent, the economics literature have long reported evidence that decision makers utilize different decision strategies depending upon many factors (person-specific, task-specific, etc.). Such observations have generally failed to affect the specification of choice models in commercial practice and academic research, both of which still tend to assume an utility maximizing, full information, indefatigable decision maker. This is true whether the models deal with Stated Preference (SP - from hypothetical elicitations) or Revealed Preference (RP - from actual market decisions) choice data. This paper, which deals only with SP data, addresses the following issues: (1) does task complexity... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Institutional and Behavioral Economics. |
| Ano: 1997 |
URL: http://purl.umn.edu/24101 |
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| Adamowicz, Wiktor L.. |
| The present paper reviews activity in environmental valuation by examining trends in publication rates over the past three decades. It also provides an overview of the demand for environmental valuation by academic markets and by policy markets. The results of this historical analysis suggest that there is not as much use of environmental valuation in policy analysis as could be expected given the academic efforts on this topic. The paper also provides an overview of the future directions that environmental valuation research is likely to take given current research efforts. |
| Tipo: Journal Article |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2004 |
URL: http://purl.umn.edu/117970 |
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| Haener, Michel K.; Adamowicz, Wiktor L.. |
| This paper considers the treatment of "don't know" (DK) responses to referendum contingent valuation questions. The determinants of DK responses are empirically analyzed using a data set from a survey of old growth forest valuation. It is found that DK respondents possess unique characteristics that differentiate them from Yes and No respondents. These findings do not support the most common treatments of DK responses that are currently used. Responses to an open-ended question included in the survey are used to provide further insight into the preferences of DK respondents. |
| Tipo: Journal Article |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 1998 |
URL: http://purl.umn.edu/31518 |
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| Adamowicz, Wiktor L.; Veeman, Michele M.; White, Elspeth. |
| The majority of potato farming in Canada occurs in tightly clustered geographic locations and requires substantial chemical inputs. The possibility of pesticide drift, pesticide residues on food and the effect of pesticides on the environment, leads to interest in quantifying the different effects that pesticides may have on human health and the environment. This study focuses on the potential use of genetically modified potatoes, the associated issue of pesticide residues in the air, and the potential impact of this on the health of farmers, their families, and others in the context of Prince Edward Island. Reductions in costs of potato farming and reduced health costs that may be associated with lower pesticide applications in growing genetically... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2004 |
URL: http://purl.umn.edu/34199 |
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| Hauer, Grant; Cumming, Steve; Schmiegelow, Fiona; Adamowicz, Wiktor L.; Weber, Marian; Jagodzinski, Robert. |
| An important element of resource management and conservation is an understanding of the tradeoffs between marketed products such as timber and measures of environmental quality such as biodiversity. In this paper, we develop an integrated economic – ecological spatial optimization model. The integrated model incorporates dynamic forest sector harvesting, oil and gas sector development, coarse filter or habitat based old-forest indicators, and a set of empirical forest bird models that predict bird abundance. Using our integrated model, economic tradeoff curves, or production possibility frontiers, are developed that illustrate the cost of achieving coarse filter targets by a set time (50 years) within a 100 year time horizon. We explore the production... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy; Land Economics/Use; Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/52086 |
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| Veeman, Terrence S.; Veeman, Michele M.; Adamowicz, Wiktor L.; Royer, S.; Viney, Bruce; Freeman, Ruth; Baggs, J.. |
| The effective management of water resources in Alberta is crucial to sustainable agriculture, industrial development, and environmental management. The historical water allocation mechanism, administrative apportionment, has been viewed in recent years as ineffective and cumbersome. Accordingly, the revision of the Water Act in 1996, included an attempt to improve the efficiency of water allocation. By making the transfer of water rights possible, the revised Act provides many new options for water use and flexibility. The implications of transferable water rights in Alberta water policy must be carefully considered in order to determine the viability and suitability of such a system in the provincial context. This project examines some of the economic... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 1997 |
URL: http://purl.umn.edu/24047 |
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| Tanguay, Mark; Adamowicz, Wiktor L.; Boxall, Peter C.. |
| The purpose of this study was to identify the values Saskatchewan residents place on their Woodland Caribou conservation programs. Using contingent valuation methods, individual values for maintaining caribou numbers within Millar Western-NorSask Forest Management Licence agreement area were estimated. Using these value estimates, societal benefits were estimated for the implementation of a woodland caribou maintenance program within the forest licence agreement area. The data used in this study were collected using a mailout survey to Saskatchewan residents. Two contingent valuation formats were used, the opened ended willingness to pay and the dichotomous choice. A number of question structures were employed in order to judge the sensitivity of the... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy; Resource /Energy Economics and Policy. |
| Ano: 1995 |
URL: http://purl.umn.edu/24039 |
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| Registros recuperados: 61 | |
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