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    Does Combining Data from the Laboratory with a DCE Improve Our Understanding of Decision-Making?

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    Author
    Lancsar, E; Ride, J; Dorner, Z
    Date
    2020-02-01
    Source Title
    The Patient: Patient Centered Outcomes Research
    Publisher
    Springer
    University of Melbourne Author/s
    Ride, Jemimah
    Affiliation
    Melbourne School of Population and Global Health
    Metadata
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    Document Type
    Conference Paper
    Citations
    Lancsar, E., Ride, J. & Dorner, Z. (2020). Does Combining Data from the Laboratory with a DCE Improve Our Understanding of Decision-Making?. PATIENT-PATIENT CENTERED OUTCOMES RESEARCH, 13, (1), pp.141-141. Springer. https://doi.org/10.1007/s40271-019-00398-3.
    Access Status
    Access this item via the Open Access location
    URI
    http://hdl.handle.net/11343/258908
    DOI
    10.1007/s40271-019-00398-3
    Open Access URL
    https://link.springer.com/content/pdf/10.1007/s40271-019-00398-3.pdf
    Description

    Conference abstract

    Abstract
    Background: There is growing interest in the possibilities offered by experimental economics to improve methods used in health economics. Here we study the application of methods from the experimental economics laboratory to health-related discrete choice experiments (DCEs). The hypothesis is that we can improve our understanding of participants’ preferences by estimating novel, more comprehensive, preference models, now accounting for or making fewer assumptions about factors usually not captured in a DCE. Methods: The setting for this study is a DCE examining preferences for programs designed to improve nutrition and/or physical activity. These lifestyle choices are highly relevant to the pervasive problem of obesity, and carry significant health impacts. The DCE examines preferences for type of program, cost, program goals, and financial incentives for achievement of weight loss goals. We use laboratory methods to measure respondents’ time preferences, intrinsic motivation, and physical stature, incorporating each into the preference model. Using mixed logit estimation we compared a model with attributes and covariates to the same model with the addition of the variables from the laboratory. We test whether harnessing additional variables from the laboratory has any significant effect on our estimates of preference by examining the impact on model coefficients and on willingness-to-pay for program attributes. Results and conclusions: Measures of time preference and physical stature are statistically significant explanatory variables in our model. Adding these to the model did not change preferences in relation to the attributes of the nutrition and exercise programs nor other covariates, improved the statistical properties of the models (AIC and BIC) and impacted the estimated willingness-to-pay for program attributes. We discuss policy insights, implications for DCE practice and methodological questions raised by these findings.

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