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Wyszukujesz frazę "discrete choice experiment" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Accounting for Spatial Heterogeneity of Preferences in Discrete Choice Models
Autorzy:
Budziński, Wiktor
Czajkowski, Mikołaj
Powiązania:
https://bibliotekanauki.pl/articles/2075414.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
discrete choice experiment
discrete choice models
individual-, region- and population-level parameter estimates
spatial preference heterogeneity
Opis:
There are reasons researchers may be interested in accounting for spatial heterogeneity of preferences, including avoiding model misspecification and the resulting bias, and deriving spatial maps of willingness-to-pay (WTP), which are relevant for policy-making and environmental management. We employ a Monte Carlo simulation of three econometric approaches to account for spatial preference heterogeneity in discrete choice models. The first is based on the analysis of individual-specific estimates of the mixed logit model. The second extends this model to explicitly account for spatial autocorrelation of random parameters, instead of simply conditioning individual-specific estimates on population-level distributions and individuals’ choices. The third is the geographically weighted multinomial logit model, which incorporates spatial dimensions using geographical weights to estimate location-specific choice models. We analyze the performance of these methods in recovering population-, region- and individual-level preference parameter estimates and implied WTP in the case of spatial preference heterogeneity. We find that, although ignoring spatial preference heterogeneity did not significantly bias population-level results of the simple mixed logit model, neither individual-specific estimates nor the geographically weighted multinomial logit model was able to reliably recover the true region- and individual-specific parameters. We show that the spatial mixed logit proposed in this study is promising and outline possibilities for future development.
Źródło:
Central European Journal of Economic Modelling and Econometrics; 2021, 1; 1-24
2080-0886
2080-119X
Pojawia się w:
Central European Journal of Economic Modelling and Econometrics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Value of Life Year and Cost-Effectiveness Thresholds: The Case of Poland
Autorzy:
Markiewicz, Olimpia
Powiązania:
https://bibliotekanauki.pl/articles/1964852.pdf
Data publikacji:
2021-08-20
Wydawca:
Uniwersytet Warszawski. Wydział Nauk Ekonomicznych
Tematy:
Cost-Effectiveness Threshold
Discrete Choice Experiment (DCE)
Quality Adjusted Life Year (QALY)
Value of Life Year (VOLY)
Value of Statistical Life (VSL)
Opis:
The objective of this article is to examine how people value two different attributes of Value of Life Year (VOLY): life expectancy and the quality of life. The results of the first VOLY estimations conducted in Poland are discussed and compared with Polish cost-effectiveness thresholds for medical treatments in the period 2008–2020. The Discrete Choice Experiment (DCE) method was used to value two attributes of VOLY: increase in life expectancy and improvement in the quality of life. The VOLY research was conducted in two populations: general and dialysis. Depending on their current health status, people value increased life expectancy and improvement in health quality differently. In light of these results, the VOLY should be differentiated. Also in the Quality Adjusted Life Year (QALY) indicator, the weights of the attributes of length and quality of life should be varied according to different states of health. A uniform cost-effectiveness threshold is not justified from the perspective of stated preferences. Cost-effectiveness thresholds based on demand-side values should be differentiated. Current Polish cost-effectiveness thresholds are overestimated compared to valuations based on stated preferences. The article presents the first estimations of two attributes of VOLY: life expectancy and the quality of life, carried out in Poland.
Źródło:
Central European Economic Journal; 2021, 8, 55; 256-268
2543-6821
Pojawia się w:
Central European Economic Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparing the Crisp and Fuzzy Approaches to Modelling Preferences Towards Health States
Autorzy:
Kamiński, Bogumił
Jakubczyk, Michał
Powiązania:
https://bibliotekanauki.pl/articles/578540.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Ekonomiczny w Katowicach
Tematy:
Discrete choice experiment
Fuzzy modelling
Health-related quality of life
Preference elicitation
Eksperyment z dyskretnym wyborem
Jakość życia związana ze zdrowiem
Modelowanie rozmyte
Opis:
Understanding societal preferences towards health is vital in public decisions on nancing health technologies. Thought experiments in which respondents choose between health states are used to understand the importance of individual criteria. Competing models of preference structure can be compared by their ability to explain empirical observations. One of the key challenges when constructing such models is that they have to aggregate preferences dened in multiple-criteria space. In the present paper, we test whether treating the impact of health worsening (dened using EQ-5D-5L descriptive system, i.e. decomposing health status in ve criteria) as a fuzzy concept can improve the model fit. To test if fuzzy approach to multiple-criteria preferences aggregation is valid, we compare a standard, crisp model (SM) with two models using fuzzy sets (JKL, previously proposed in the literature; and FMN introduced here). We nd FMN better than SM, and SM better than JKL. Anxiety/depression and pain/discomfort seem to weigh most in preferences. According to FMN, self-care and usual activities are associated with largest imprecision in preferences. The respondents are susceptible to framing eects when time unit is changed: e.g. measuring the duration in days results in short intervals mattering more than when expressed as weeks. We conclude that the fuzzy-based framework is promising, but requires careful work on the exact specication.
Źródło:
Multiple Criteria Decision Making; 2017, 12; 75-89
2084-1531
Pojawia się w:
Multiple Criteria Decision Making
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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