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| Campbell, Danny; Hutchinson, W. George; Scarpa, Riccardo. |
| In discrete choice experiments respondents are generally assumed to consider all of the attributes across each of the alternatives, and to choose their most preferred. However, results in this paper indicate that many respondents employ simplified lexicographic decision-making rules, whereby they have a ranking of the attributes, but their choice of an alternative is based solely on the level of their most important attribute(s). Not accounting for these simple decision-making heuristics introduces systemic errors and leads to biased point estimates, as they are a violation of the continuity axiom and a departure from the use of compensatory decision-making. In this paper the implications of lexicographic preferences are examined. In particular, using a... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy; Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/12224 |
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| Doherty, Edel; Campbell, Danny. |
| This paper explores the demand for improved safety and quality for meat products among consumers in two regions using a discrete choice experiment methodology. The study takes account of preferences from consumers across Great Britain and the Republic of Ireland. The features explored in the choice experiment include food safety, traceability, animal health and welfare, region of origin and price. The results suggest a large difference between willingness to pay and implicit ranking of attributes across regions. Meat products that come from ‘Ireland’ are most highly demanded among the features for Irish consumers, whereas consumers based in Great Britain value enhanced testing and animal health and welfare standards highest. Furthermore, a high correlation... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Food Consumption/Nutrition/Food Safety. |
| Ano: 2011 |
URL: http://purl.umn.edu/108791 |
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| Campbell, Danny; Hutchinson, W. George; Scarpa, Riccardo. |
| Reported in this paper are the findings from two discrete choice experiments that were carried out to address the value of a number of farm landscape improvement measures within the Rural Environment Protection (REP) Scheme in Ireland. Image manipulation software is used to prepare photorealistic simulations representing the landscape attributes across three levels to accurately represent what is achievable within the Scheme. Using a mixed logit specification willingness to pay (WTP) distributions based on the parameter estimates obtained from the individual conditional distributions are derived. These estimates are subsequently adjusted and combined to account for baselines and levels of improvement resulting from the implementation of the REP Scheme.... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/12220 |
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| Campbell, Danny; Doherty, Edel; Gibson, Vikki. |
| Stated choice analysis is now a widely used and accepted methodology for exploring food choice. In stated choice experiments respondents are asked to make a choice between two or more alternatives, one of which typically takes the form of a ‘buy none’ option. It is widely recognised that respondents often perceive this option differently from the other alternatives and various reasons for this have been offered. Nevertheless, the role that utility balance among the experimentally designed options plays on the propensity of respondent’s choosing ‘buy none’ has largely been overlooked. Using a non-linear representation of utility we show that the ‘buy none’ choices are sensitive to utility balance. We further show how accommodating this provides an... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Discrete choice experiments; Utility balance; Status-quo bias; Food choice; Consumer/Household Economics. |
| Ano: 2011 |
URL: http://purl.umn.edu/108951 |
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