Developing an integrated scobit-based activity participation and time allocation model to explore influence of childcare on women%26apos;s time use behaviour

作者：Zhang Junyi^*; Xu Lili; Fujiwara Akimasa

来源：Transportation, 2012, 39(1): 125-149.

DOI：10.1007/s11116-011-9321-5

• Childcare
• Women
• Activity participation
• Scobit model
• Time allocation
• Japan

Focusing on the influence of childcare on women%26apos;s time use behaviour, this paper develops an integrated model of activity participation and time allocation, where the former is represented based on a scobit model and the latter based on a multi-linear utility function under the utility-maximizing principle. The integration of the scobit model with the time allocation model is done by applying Lee%26apos;s transformation. Especially, the scobit model is adopted to relax the assumption, made in the Logit or Probit model, that individuals having indifferent preferences over participation and non-participation are most sensitive to changes in explanatory variables. Using a large-scale time use data (66,839 persons) collected in Japan, the effectiveness of the proposed integrated model is empirically confirmed. It is revealed that the probabilities of participating in compulsory-contracted activities and discretionary activities with the highest sensitivity to changes in explanatory variables are 65 and 81%, respectively. Variances of social childcare variables explain about half of the total variance of the time use for discretionary activities; however, for compulsory-contracted activities, social childcare variables explain only less than 1% of the total variance of activity participation and less than 10% of total variable of time allocation.

• 出版日期2012-1