Highlights A new flexible Generalized Heterogeneous Data Model (GHDM) is proposed A non-normal factor-based approach is applied using an efficient transformation The latent unobserved factors are allowed to be correlated with the outcomes An application – attitudinal latent constructs correlated with outcomes The model is applied to residential choice and bicycling frequency
ABSTRACT There is growing interest in multivariate dependent outcome models that include a mixture of different kinds of discrete and continuous variables. This may be attributed to at least two reasons. The first is the ability to generate multivariate distributions through the use of relatively flexible copula-based methods and/or effective factorization techniques for the covariance matrices. The second is the development of computationally efficient ways to estimate models based on variational methods for Bayesian inference or maximum approximate composite marginal likelihood methods for frequentist inference. However, there are two important assumptions in earlier mixed data models: (i) marginal normality of unobserved factors that generate jointness among the main outcome variables of interest, and (ii) independence between the unobserved factors and the propensity equations underlying the main outcomes of interest. In the current paper, we simultaneously relax both these assumptions and develop a flexible Generalized Heterogeneous Data Model (GHDM) for mixed data modeling. We then propose a hybrid MSL-MACML inference approach for estimation. We demonstrate an application of our proposed model in the context of individuals’ high-density residential neighborhood living choice and monthly bicycling frequency. The empirical results highlight the benefits of our proposed methodology, both from a policy standpoint as well as a predictive data fit standpoint.
A New Flexible Generalized Heterogeneous Data Model (GHDM) with an Application to Examine the Effect of High Density Neighborhood Living on Bicycling Frequency
Transportation Research Part B: Methodological ; 164 ; 244-266
2022-09-02
23 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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