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| Registros recuperados: 14 | |
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| Erdem, Seda; Rigby, Dan. |
| We present research findings on consumers’ willingness to pay (WTP) for reductions in the level of foodborne health risks. The research addresses how such valuations are affected by the means of which the risk reduction is delivered and the methods of risk presentations used in choice tasks. In this case, the research has two treatments. In the first treatment, the comparison is between risk reductions achieved by an improvement in the food system in general (e.g., more stringent regulations and inspection regimes) within the slaughter and meat processing stages of the food chain, as opposed to a risk reduction achieved via innovations in food packaging using nanotechnology, which is the use of nanosensors in packaging. If there is a contamination in... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Discrete Choice Experiments; Nanotechnology; Nanosensors; Health Risks; Grids; UK; Health Economics and Policy. |
| Ano: 2011 |
URL: http://purl.umn.edu/108950 |
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| Burton, Michael P.; Rigby, Dan; Young, Trevor. |
| Duration Analysis, which allows the timing of an event to be explored in a dynamic framework, is used to model the adoption of organic horticultural technology in the UK. The influence of a range of economic and non-economic determinants is explored using discrete time models. The empirical results highlight the importance of gender, attitudes to the environment and information networks, as well as systematic effects that influence the adoption decision over the lifetime of the producer and over the survey period. |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/116172 |
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| Erdem, Seda; Rigby, Dan; Wossink, Ada. |
| We report results of an analysis of the attribution of relative responsibility across the stages of the food chain for ensuring food safety. Specifically, we identify perceptions of the share of the overall responsibility that each stage in the food chain has to ensure that the meat people cook and eat at home does not cause them to become ill. Results are reported for two groups of stakeholders: consumers and farmers, and for two types of meat: chicken and beef. The stakeholders’ opinions regarding the relative degrees of responsibility of the sequential food chain stages (feed supplier, farmer, livestock transportation, abattoir,… consumer) are elicited via surveys using the Maximum Difference technique (best-worst scaling). The data are analyzed using... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Food Consumption/Nutrition/Food Safety; Q18; Q51; D03; D12. |
| Ano: 2010 |
URL: http://purl.umn.edu/91813 |
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| Rigby, Dan; Burton, Michael P.; Young, Trevor. |
| The dispute between the US and EU over GM foods at the WTO is examined in terms of the issues it raises about protectionism, environmental protection and precaution. The issue of whether GM, GM Derived and Non-GM foods are equivalent to each other is examined using data from a national choice modelling study in the UK. These categories of food are critical since they underpin the EU's new food labelling regime which it hoped would defuse the WTO dispute. The results are analysed using a Bayesian mixed logit model which allows greater flexibility in the modelling of preference distributions than that allowed through classical estimation. The Bayesian approach allows the use of censored normal and Johnson's SB distributions which can accommodate a bounded... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: GM food; Mixed logit; WTP; Bayesian; WTO; International Relations/Trade; Q51; Q55; Q56; Q58. |
| Ano: 2006 |
URL: http://purl.umn.edu/25503 |
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| Rigby, Dan; Burton, Michael P.. |
| Analyses of data from random utility models of choice data have typically used fixed parameter representations, with consumer heterogeneity introduced by including factors such as the age, gender etc of the respondent. However, there is a class of models that assume that the underlying parameters of the estimated model (and hence preferences) are different for each individual within the sample, and that choices can be explained by identifying the parameters of the distribution from which they are drawn. Such a random parameter model is applied to stated choice data from the UK, and the results compared with standard fixed parameter models. The results provide new evidence of preferences for various aspects of the UK food system, particularly in relation to... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Random parameter logit; Choice modelling; GMOs; Food safety; Food Consumption/Nutrition/Food Safety. |
| Ano: 2003 |
URL: http://purl.umn.edu/58200 |
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| Erdem, Seda; Rigby, Dan. |
| This research locates a series of risks or hazards within a framework characterised by the level of control respondents believe they have over the risks, and the level of worry the risks prompt. It does this for a set of both food and non-food risks. The means by which this is done is novel, and differs from past risk perception analyses in that it questions people directly regarding their relative assessments of the levels of control and worry over the risks presented. The cognitive burden associated with people ranking and scaling items in large sets is notoriously heavy, so this study uses an elicitation method designed to make the process intuitive and cognitively manageable for respondents. The substantive analysis of the risk perceptions has four... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Best-worst scaling; Risk; Perception; Novel technology; E. coli; UK; Risk and Uncertainty. |
| Ano: 2011 |
URL: http://purl.umn.edu/108790 |
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| Pluske, Johanna M.; Burton, Michael P.; Rigby, Dan; Vercoe, Philip E.. |
| In Australia, Bos taurus cattle breeds produce high quality meat, superior in taste and tenderness characteristics. Nevertheless, these breeds do not thrive in the Northern Australian environment. Stem cell transplant techniques could improve northern beef cattle breeding programs by facilitating crossbreeding via natural service. Focus groups were used in this study to explore consumer reaction to reproduction technologies and the implications for buying intentions. Findings suggested that consumers may react negatively to unconventional breeding technologies but the degree of this aversion is contingent upon how the technology is described. These findings are relevant for preparation of choice modeling surveys. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Non-market valuation; Consumers; Focus groups; New technologies; Beef. |
| Ano: 2009 |
URL: http://purl.umn.edu/48167 |
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| Rigby, Dan; Burton, Michael P.; Young, Trevor. |
| The dispute between the US and EU over GM foods at the WTO is examined in terms of the issues it raises about protectionism and environmental protection and precaution. The issue of whether GM, GM Derived and Non-GM foods are equivalent to each other is examined using data from a national choice modelling study in the UK. These categories of food are critical since they underpin the EU's new food labelling regime which it hoped would defuse the WTO dispute. The results are analysed using a Bayesian mixed logit model which allows greater flexibility in the modelling of preference distributions. This is particularly crucial where, as in this case, bi-modal distributions are identified with some indifferent or mildly averse to GM foodtypes while others are... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: GM food; Mixed logit; WTP; Bayesian; WTO; International Relations/Trade; C11; C24; C25; D12; Q18. |
| Ano: 2005 |
URL: http://purl.umn.edu/24447 |
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| Burton, Michael P.; Rigby, Dan. |
| In repeated choice modelling studies, it is often the case that individuals always select the status quo option. Although these choices may reflect considered choices, they may also be the result of alternative decisions about whether to participate in the choice process at all. Alternative methods of dealing with this feature of such data are presented, with the implications for estimates of economic values. In particular we consider the alternatives of excluding such individuals from the data, using hurdle models to explicitly model this group, and consider the possibility of latent class models, that endogenously allow for difference preference structures. The application is to a stated preference choice modelling data set that investigates preferences... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Demand and Price Analysis; C8; D6; C23. |
| Ano: 2006 |
URL: http://purl.umn.edu/25312 |
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| Registros recuperados: 14 | |
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