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Registros recuperados: 28
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Adopción de tecnología de distribución y control del agua en las Comunidades de Regantes de la Región de Murcia AgEcon
Alcon, Francisco; De Miguel, María Dolores; Burton, Michael P..
RESUMEN: En el presente trabajo se estudia el proceso de adopción de tecnología de distribución y control de agua que las Comunidades de Regantes de la Región de Murcia han llevado a cabo desde el año 1975 hasta 2005. Se analiza el tiempo que transcurre desde que se constituye la Comunidad de Regantes hasta que toma la decisión de adoptar utilizando Análisis de Duración. Se identifican como aceleradores del proceso de adopción la posesión de un pozo de apoyo, el empleo de un sistema tarifario variable en función del consumo, los efectos de las políticas de subvenciones a las obras de modernización y mejora de los regadíos y las sequías. SUMMARY: The present paper analyses the process of adopting water management and control technology in the irrigation...
Tipo: Journal Article Palavras-chave: Análisis de duración; Comunidad de regantes; Función de riesgo; Tecnología de riego; Irrigation community; Hazard function; Irrigation technology; Duration analysis; Agribusiness; Research and Development/Tech Change/Emerging Technologies; Q16; Q25; D71.
Ano: 2008 URL: http://purl.umn.edu/37190
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Biased estimates in discrete choice models: the appropriate inclusion of psychometric data into the valuation of recycled wastewater AgEcon
Gibson, Fiona L.; Burton, Michael P..
The introduction of measurement bias in parameter estimates into non-linear discrete choice models, as a result of using factor analysis, was identified by Train et al. (1987). They found that the inclusion of factor scores, used to represent relationships amongst like variables, into a subsequent discrete choice models introduced measurement bias as the measurement error associated with each factor score is excluded. This is an issue for non-market valuation given the increase in popularity of including psychometric data, such as primitive beliefs, attitudes and motivations, in willingness to pay estimates. This study explores the relationship between willingness to pay and primitive beliefs through a case study eliciting Perth community values for...
Tipo: Conference Paper or Presentation Palavras-chave: Discrete choice models; Attitudes; Factor analysis; Measurement models; Recycled wastewater.
Ano: 2009 URL: http://purl.umn.edu/47943
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Capturing Preference Heterogeneity in Stated Choice Models: A Random Parameter Logit Model of the Demand for GM Food AgEcon
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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Cattle breeding in Northern Australia: Revealing how consumers react to new technologies AgEcon
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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Choice Experiments: identifying preferences or production functions? AgEcon
Gibson, Fiona L.; Burton, Michael P..
This report presents an alternative perspective on how respondents consider choice experiment options. Building on the ‘new’ model of consumer demand by Stigler and Becker (1977), the report suggests that the attributes within choice experiments are not valued directly. Rather, they are used to generate higher-level improvement in the environment (‘constructs’). This implies that to achieve the environmental outcome, what are currently viewed as marginal utilities of attributes are in fact marginal utilities mixed with (subjective) marginal productivity of the attribute. The research report also proposes that hierarchical Information integration methods may allow separate identification of the utility and production functions, and the individual...
Tipo: Report Palavras-chave: Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 2009 URL: http://purl.umn.edu/94889
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Community attitudes towards water management in the Moore Catchment, WA. AgEcon
Burton, Michael P.; Marsh, Sally P.; Patterson, Josie.
The Moore Catchment, which lies to the north of Perth, WA, suffers from a number of problems related to water management. Farmers want to manage salinity and waterlogging problems through the use of drains, but this has negative off-farm impacts on both the environment and flood risk. Views on responsibilities for managing water within the catchment differ between farmers, local communities and government agencies. This paper reports the results from surveys of attitudes towards catchment management, for two community groups: residents of Perth and residents of rural towns in the catchment. A parallel study of farmers has been undertaken but is not reported here. These surveys elicited general attitudes towards the environment and agriculture, and views on...
Tipo: Presentation Palavras-chave: Community/Rural/Urban Development; Resource /Energy Economics and Policy.
Ano: 2000 URL: http://purl.umn.edu/123616
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Consumer preferences for GM food and other attributes of the food system AgEcon
James, Sallie; Burton, Michael P..
While qualitative surveys regarding consumers’ attitudes about gene technologies and their application to food production are plentiful, quantitative studies are less so. The present paper reports choice modelling methods to examine the conditions under which Australian consumers are willing to purchase genetically modified (GM) foods, if at all, and examines those preferences within the context of the food system as a whole. This allows us to compare consumer attitudes towards gene technology to consumer preferences for other features of the food they consume. The results of the choice modelling analysis suggest consumers require a discount on their weekly food bill before they will purchase GM food. Gene technology using animal as well as plant genes was...
Tipo: Journal Article Palavras-chave: Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 2003 URL: http://purl.umn.edu/118160
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Decision-Making in a Social Welfare Context AgEcon
Scarborough, Helen; Burton, Michael P.; Bennett, Jeffrey W..
This paper presents analysis of the decision-making strategies adopted by respondents when confronted with potential policy options that include changes in both aggregate levels of welfare and equity in distribution. The analysis is based on the results of a choice experiment designed to estimate intergenerational distributional preferences. Non-linear welfare functions are employed within a conventional conditional logit framework. The heuristics employed by respondents in the stated preference context provide valuable insights into the application of welfare principles by respondents in determining trade-offs between the potential changes in the well-being of different generations.
Tipo: Conference Paper or Presentation Palavras-chave: Intergenerational Equity; Distribution; Choice modelling; Research Methods/ Statistical Methods.
Ano: 2009 URL: http://purl.umn.edu/47622
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Determining the change in welfare estimates from introducing measurement error in non-linear choice models AgEcon
Gibson, Fiona L.; Burton, Michael P..
Observed and unobserved characteristics of an individual are often used by researchers to explain choices over the provision of environmental goods. One means for identifying what is typically an unobserved characteristic, such as an attitude, is through some data reduction technique, such as factor analysis. However, the resultant variable represents the true attitude with measurement error, and hence, when included into a non-linear choice model, introduces bias in the model. There are well established methods to overcome this issue, which are seldom implemented. In an application to preferences over two water source alternatives for Perth in Western Australia, we use structural equation modeling within a discrete choice model to determine whether...
Tipo: Working or Discussion Paper Palavras-chave: Contingent valuation; Attitudes; Structural equation modeling; Recycled water; Environmental Economics and Policy; Research Methods/ Statistical Methods; Q51; Q53; C13.
Ano: 2011 URL: http://purl.umn.edu/103428
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Economic valuation of recreational fishing in Western Australia AgEcon
Raguragavan, Jananee; Hailu, Atakelty; Burton, Michael P..
Allocation of fish resource is a controversial subject. Decision making is partly made difficult by the lack of knowledge on recreational fishing preferences and the value of fishing opportunities. This study investigates fishing site choices in Western Australia. Recreational fishing data covering the eight major fishing regions and fourty eight fishing sites in the State are used. The data are used to estimate a random utility model (RUM) of site choice behaviour with a supporting negative binomial econometric model of angler and fish-specific expected catch rates. We provide value estimates for different fish types, fishing site attribute changes as well as site access values. It is argued that sound economic value estimates can be starkly different...
Tipo: Working or Discussion Paper Palavras-chave: Non-market valuation; Recreational fishing; Random utility models; Fisheries management; Marine environment management; Environmental Economics and Policy.
Ano: 2010 URL: http://purl.umn.edu/97473
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ESTIMATING DETERMINANTS OF STUDENT EVALUATION SCORES TO IMPROVE TEACHING AgEcon
McCann, Laura M.J.; Burton, Michael P..
Student evaluations are used for both formative and summative assessment of teachers. This paper provides a method to make more effective use of these student evaluations by individual teachers. Data on three years of evaluations in two courses were used to develop regression models to explain overall effectiveness of teaching. The relative importance of explanatory variables changed with the course taught.
Tipo: Conference Paper or Presentation Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 2001 URL: http://purl.umn.edu/20509
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Estimating Urban Residential Water-Demand with Increasing Block Prices: The Case of Perth, Western Australia AgEcon
Xayavong, Vilaphonh; Burton, Michael P.; White, Benedict.
This study uses panel data at suburb level to estimates the elasticity water demands in Perth, Australia from 1995 to 2005. After deriving the consumer’s water demand under a non-linear budget constraint, we estimate the water demand model, which accounts for how water (and other purchased goods) is used to satisfy fundamental desires of the household. We have applied the specification of price that provided the correctly estimated marginal price from the block tariff structure, and employed a maximum likelihood estimation technique to tackle the endogeneity and heteroskedasticity issues. Our estimation of water demand price elasticities are slightly higher (more elastic) than previous study in Perth, but broadly in line with other estimates in the...
Tipo: Working or Discussion Paper Palavras-chave: Water demand; Water pricing; Block pricing; Water resource management; Household model; Resource /Energy Economics and Policy; Q21; Q25; Q23.
Ano: 2007 URL: http://purl.umn.edu/7061
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Estimating Urban Residential Water-Demand With Increasing Block Prices: The Case of Perth, Western Australia AgEcon
Xayavong, Vilaphonh; Burton, Michael P.; White, Benedict.
This study uses panel data at suburb level to estimates the elasticity water demands in Perth, Australia from 1995 to 2005. After deriving the consumer’s water demand under a non-linear budget constraint, we estimate the water demand model, which accounts for how water (and other purchased goods) is used to satisfy fundamental desires of the household. We have applied the specification of price that provided the correctly estimated marginal price from the block tariff structure, and employed a maximum likelihood estimation technique to tackle the endogeneity and heteroskedasticity issues. Our estimation of water demand price elasticities are slightly higher (more elastic) than previous study in Perth, but broadly in line with other estimates in the...
Tipo: Conference Paper or Presentation Palavras-chave: Water demand; Water pricing; Block pricing; Water resource management; Household model; Demand and Price Analysis; Resource /Energy Economics and Policy; Q21; Q25 and Q23.
Ano: 2008 URL: http://purl.umn.edu/6010
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Explaining farmers’ monitoring of sustainability indicators: a bore-ing example for salinity in Western Australia AgEcon
Marsh, Sally P.; Burton, Michael P.; Pannell, David J..
Dryland salinity is one of the most pressing land management problems in Western Australia. A number of projects are in progress to provide a more comprehensive picture of the location and extent of potentially saline areas in the landscape. Associated with some of these projects, a large number of bores (piezometers) have been installed or are being installed throughout the agricultural area to provide information on depth to groundwater and changes in water levels over time. These bores provide information about whether and when the ground water will reach the surface, causing losses of agricultural production through salinisation of soils. Using data from the Jerramungup Land Conservation District (LCD) we explore factors influencing the behaviour of...
Tipo: Presentation Palavras-chave: Sustainability indicators; Environmental indicators; Resource monitoring; Economics of information; Hydrology; Dryland salinity; Western Australia; Farm Management; Land Economics/Use.
Ano: 2000 URL: http://purl.umn.edu/123702
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Factors influencing adoption of conservation tillage in Australian cropping regions AgEcon
D'Emden, Francis H.; Llewellyn, Rick S.; Burton, Michael P..
The purpose of this research is to improve understanding of conservation tillage adoption decisions by identifying key biophysical and socio-economic factors influencing no-till adoption by grain growers across four Australian cropping regions. The study is based on interviews with 384 grain growers using a questionnaire aimed at eliciting perceptions relating to a range of possible long- and short-term agronomic interactions associated with the relative economic advantage of shifting to a no-tillage cropping system. Together with other farm and farmer-specific variables, a dichotomous logistic regression analysis was used to identify opportunities for research and extension to facilitate more rapid adoption decisions. The broader systems approach to...
Tipo: Article Palavras-chave: Adoption; Conservation tillage; Herbicide resistance; No-till; Perceptions; Weed management; Farm Management.
Ano: 2008 URL: http://purl.umn.edu/118537
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Inducing Strategic Bias: and its implications for Choice Modelling design AgEcon
Burton, Michael P..
It has been suggested that the nature of the task within a multi-attribute multi-alternative choice experiment may be sufficiently complex to make it difficult for individuals to develop response strategies to strategically bias their answers. This experiment tested that hypothesis by setting experimental conditions that provide incentives for strategic bias. By changing design parameters one can investigate whether the strategic bias can be reduced. The answer is effectively no: under most circumstances, respondents could find a strategy that achieved significant bias in inferred preferences. The circumstances where this did not occur (involving ranking alternatives, rather than selecting a single preferred alternative) the inferred preferences reflected...
Tipo: Journal Article Palavras-chave: Strategic bias; Choice modeling; Complexity; Resource /Energy Economics and Policy; Q51; C91.
Ano: 2010 URL: http://purl.umn.edu/95062
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Measuring the Cost-effectiveness of Conservation Auctions Relative to Alternate Policy Mechanisms AgEcon
White, Benedict; Burton, Michael P..
The principle motivation for using price-discriminating conservation auctions is that they are expected to be significantly more cost-effective than fixed-price mechanisms. This paper measures cost effectiveness for tenders from two rounds of the Auction for Landscape Recovery in Western Australia relative to counterfactual fixed-price mechanisms. If we assume that the bid equals the compliance cost, the auction gives a significant cost saving over fixed-price mechanisms. If instead we assume that bids include an element of rent, fixed-price mechanisms can be more cost effective than the auction. The significance of these results is that a fixed price scheme may achieve a similar level of cost effectiveness to a conservation auction, when one or more...
Tipo: Working or Discussion Paper Palavras-chave: Auctions; Conservation; Bio-diversity; Environmental Economics and Policy; Q57.
Ano: 2010 URL: http://purl.umn.edu/97798
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Modelling the adoption of organic horticultural technology in the UK using Duration Analysis AgEcon
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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More empirical evidence on the adoption of chick peas in Western Australia. or: Different ways of thinking about nothing. AgEcon
Abadi Ghadim, Amir K.; Burton, Michael P.; Pannell, David J..
Tipo: Presentation Palavras-chave: Crop Production/Industries.
Ano: 1999 URL: http://purl.umn.edu/121986
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Non-Participation in Choice Models: Hurdle and Latent Class Models AgEcon
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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