公益財団法人アジア成長研究所 6階 会議室
浦川邦夫（URAKAWA, Kunio）九州大学経済学研究院経済工学部門 准教授
テーマ：”Analysis of poverty of income and living time in Japan: An approach from estimation of CES well-being function” (Wei WANG, Lecturer, School of Management Studies, Shanghai University of Engineering Science, Chinaと共著)
Many previous studies have shown the rising Japanese poverty level using monetary dimensions, but few of them have considered time dimension. Recently some researchers have emphasized that time is also an important resource improving human well-being. Using panel data from the Japan Household Panel Survey (2011–2014), this study performed poverty analysis with attention to two dimensions: income and leisure time. We examined the substitutability and interdependent relationship of income and time via the estimation of CES-utility function. After the quantification, we estimated the gender gap and the socio-economic causes of interdependent multidimensional (IMD) poverty in Japan. Empirical results obtained from this analysis found that single-female-parent households are particularly prone to experience simultaneously scarcity of time and income, and two-parent households having two or more preschool children had been underestimated through the conventional income-based poverty indicator, because they unable to provide minimally required housework and childcare services even by using their household income. In addition, academic background and job statuses also affect the risk of IMD poverty. This study contributes to find severe poverty situations and suggest the increasing necessity for further employment support for single parents and childcare support for households in which both parents work outside in Japan.