Why do first-born children live together with parents?

In this paper, we analyze the strategic residential location choices of multiple siblings who receive childcare assistance from their parents. Our three stage game yields a theoretical result that first-born children are more likely to live together with or close to their parents than second-born children, which is supported by our estimation results using Japanese micro-data. We also empirically show that the childcare assistance from parents is one of the determinants of the residential location choice of siblings. This paper is the first to succeed in explaining the residential location choice of siblings in Japan using economic incentives.     

Endogenous Co-Leadership When Demand is Uncertain

Consider an oligopolistic industry where production is time-consuming, so that each firm needs to make quantity commitment by producing before the market opens. If demand uncertainty resolves some time before the market arrives, then those firms who produce early behave as simultaneous leaders (co-leaders), whilst those who wait until demand becomes observable will be followers. We discover that, in an n -firm oligopoly, the equilibrium number of co-leaders tends to be in excess of their socially optimal number, albeit both numbers monotonically decrease in the magnitude of demand uncertainty relative to the expected level of demand. We also find that, with demand uncertainty and the possibility of Stackelberg behaviour, whether the excess entry theorem applies depends upon the number of existing followers.     

Analysis on demand‐ and supply‐side responses during the expansion of health insurance coverage in Vietnam: Challenges and policy implications toward universal health coverage

This study examines how the demand and supply of healthcare services have responded to the expansion of health insurance coverage in Vietnam by using biyearly provincial panel data from 2006 to 2014. The results of our analysis indicate significant progress towards universal health coverage (UHC) in Vietnam, with the expansion of health insurance coverage being accompanied by increases in admissions and inpatient days. However, some concerns remain. Our findings show a positive response of supply capacity only in terms of doctors and nurses at higher‐level hospitals (provincial hospitals), and none in other relevant aspects. Moreover, we find no positive response of the number of outpatient visits. Another concern is the issue of financial protection. The decline in out‐of‐pocket payments is not significant throughout our observation period, suggesting that lowering the cost of healthcare is not straightforward and that the expansion of health insurance coverage alone cannot achieve this. We believe that the Vietnamese experience has valuable implications for other emerging and developing countries, considering that the expansion of health insurance coverage is likely to increase utilization of healthcare services significantly and that the supply side needs to be prepared for the increase.     

Endogenously Asynchronous Entries into an Uncertain Industry

We model and analyze a priori symmetric duopoly where supply quantity adjustment is slow and time-consuming. The state of demand is ex ante uncertain, and becomes observable a certain time period after at least one firm's entry. We characterize those conditions under which sequential entries can be endogenously chosen either as an asymmetric pure-strategy equilibrium or as a consequence of a symmetric mixed-strategy equilibrium. Also, in the limit where information revelation is infinitely fast (i.e., the time period it requires becomes infinitesimally short), the expected waiting time until the first entry does not necessarily become proportionately short, whilst the time interval between the leader's entry and the follower's entry does become infinitesimally short. This suggests that chronologically nearly simultaneous entry should not necessarily be interpreted as counterevidence against leader-follower relations. In addition to equilibrium comparative statics, we also analyze some of the welfare issues associated with strategic timing of entry.     

Strategic Choice of Quantity Stickiness and Stackelberg Leadership

This paper re‐examines endogenous Stackelberg leader–follower relations by modelling an explicitly dynamic market. We analyze a twice‐repeated duopoly where, in the beginning, each firm chooses either a quantity‐sticky production mode or a quantity‐flexible production mode. The size of the market becomes observable after the first period. In the second period, a firm can adjust its quantity if and only if it has adopted the flexible mode. Hence, if one firm chooses the sticky mode whilst the other chooses the flexible mode, then they respectively play the roles of a Stackelberg leader and a Stackelberg follower in the second marketing period. Somewhat intriguing is the finding that such a Stackelberg‐like equilibrium can arise only when the relative weight of the pre‐Stackelberg first marketing period is sufficiently high, with time preferences being sufficiently strong.     

Voluntary adoption of ISO 14001 in Japan: mechanisms,stages and effects

This paper seeks to understand what factors contribute to voluntary adoption of the ISO 14001 environmental management system by private sector facilities in Japan. A model based on regulatory, competitiveness, social responsibility and organization theory is applied to 1999 survey data. Analysis shows systematically different factors to be important indicators of voluntarism in different industries and for facilities at different stages of certification. First adopters and second adopters appear to be fundamentally different types of organizations driven by different internal and external factors. Although results do not indicate a clear causal linkage between ISO adoption and greening activity, evidence shows that at least two different stages of adoption have taken place in Japan and that ISO adoption is associated with environmental action. Copyright © 2002 John Wiley & Sons, Ltd. and ERP Environment     

Is the eldest son different? The residential choice of siblings in Japan

In this paper, we analyze the determinants of the living arrangements (coresidence behavior) of elderly parents and their children (whether elderly parents live with their children, and if so, with which child) in Japan using micro-data from a household survey. Our results provide support for all four explanations of coresidence behavior but especially for the life cycle and dynasty models (both of which assume selfishly motivated parents) and social norms and traditions: the fact that parents who were self-employed before retirement are more likely to live with their children, the fact that parents are less likely to live with sons who adopt their wife's surname, and the fact that parents are more likely to live with daughters whose husbands adopt their surname constitute evidence in favor of the dynasty model. The fact that parents who were (relatively wealthy) executives before retirement and parents who are homeowners are more likely to live with their children and the fact that parents are more likely to live with less educated children constitute evidence in favor of the selfish life cycle model (or the altruism model). And the fact that parental attitudes toward their children affect their coresidence behavior, the fact that parents are more likely to live with their eldest child if their eldest child is a son, and the fact that parents are most likely to live with their eldest son even if he is not the eldest child constitute evidence in favor of social norms and traditions.     

ANNUITIZED ASSET ADEQUACY IN JAPAN: THE DEMAND FOR INDIVIDUAL PENSIONS

In this paper, I analyze the impact of social security wealth, retirement payments, and living expenses during retirement on people's retirement savings in general, and on their individual pension holdings in particular, using micro data from a 1996 Japanese household survey. I confirm a replacement effect of social security on saving for all types of households and on individual pensions for self‐employed households only. This suggests that the social security assets of self‐employed households are less than their optimal level of annuitized assets and that they would increase their demand for individual pensions if social security benefits were to be reduced.     

Engagement on risk and uncertainty – lessons from coastal regions of Fukushima Prefecture,Japan after the 2011 nuclear disaster?

This paper uses the case study of the south-east coast of Fukushima Prefecture in Japan to draw lessons for risk communication under situations of high uncertainty and conditions of varying trust. Based on an existing field of research into the social and ethical aspects of governing risks around environmental radioactivity, empirical qualitative material collected in Fukushima Prefecture over 2014 and 2015 is analysed around three key questions: who is undertaking risk communication and how they are perceived (in particular their motivations and perceived competence); what is the purpose of engagement with citizens and stakeholders on risk and uncertainty (i.e. whether it is to ‘convince’ people or allow them to come to their own informed decision); and whether risk communication may be considered responsive to the needs of the affected populations. The findings are then applied to Kasperson’s four questions for the future of risk communication in order to assess their wider implications. Particular attention is paid to how the individual or institution conveying the risk message is perceived, and in whose interests risk communication is undertaken.     

The Possibility of Issue-Specific Decisions on Multiple Social Choice Issues

This paper considers an aggregation rule when each alternative consists of elements of multiple issues. I assume that each issue-specific aggregation rule can be applied to each issue and explore whether various different issue-specific aggregation rules are compatible. When the set of alternatives has some structure (which we call a set connected by loops), there exists a powerful individual whose preference always coincides with the social ordering in every issue. As a corollary, Arrow's General Possibility Theorem is obtained.