A Multiple Discrete-Continuous Model for Independent- and Joint- Discretionary-Activity Participation Decisions
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This paper presents a multiple discrete-continuous econometric structure to model the daily time-investment decisions of couples in solo- and joint- discretionary activities incorporating intra-personal and inter-personal inter-dependencies. The empirical model was estimated using data form the 2000 Bay Area Travel Survey. The results indicate evidence of the positive impact of vehicle availability on independent activity participation and the negative impacts of the presence of children and mandatory time investments on the joint discretionary-activity engagement of spouses. In addition, we also find the mandatory- and maintenance- activity- participation characteristics of the spouse to influence the discretionary activity choices of individuals. Finally, the analysis also indicates a strong impact of common unobserved factors of the decisions of couples. From a policy analysis perspective, these results imply that demand-management actions directly impacting one adult could also result in changes to the activity patterns of his/her spouse and to changes in joint activity participation characteristics.
At the time of publication S. Srinivasan was at the University of Florida; and C.R. Bhat was at the University of Texas at Austin.