Setting prices in mixed logit model designs

Andreas Falke () and Harald Hruschka
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Andreas Falke: University of Regensburg
Harald Hruschka: University of Regensburg

Marketing Letters, 2017, vol. 28, issue 1, No 11, 139-154

Abstract: Abstract We investigate different procedures to set prices in designs for choice-based conjoint analysis using the mixed logit model which captures latent consumer heterogeneity. Besides discrete attributes, we include a linear price term in the deterministic utility function thereby treating price as continuous variable. We consider two different price intervals and several price sets which contain either two or three prices. We compare these alternatives to set prices by simulating choices for different constellations on the basis of the mixed logit model. Furthermore, we generate ten designs simultaneously instead of just one. Using these simulated choices, we estimate the parameters of the mixed logit model in the next step. To reduce the needed sample size and computation time caused by accounting for latent consumer heterogeneity, we apply Halton draws and set a minimum potential design for prior draws. ANOVA with root mean squared error between estimated and true price coefficient values of individual consumers as dependent variable shows that using more extreme prices as interval bounds and one intermediate price positioned to the right of the interval performs best.

Keywords: Semi-Bayesian mixed logit design; Heterogeneity; Estimation accuracy; D-optimality (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1007/s11002-015-9396-4

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