low birth rate. Denoting the situations of the smoothening of public programs, the fringe curtailment benefits by companies, and the enhancement of individual responsibility, a good interface between private arrangements and public systems is impossible (Fukawa, 2005). On social security even if the burden is lowered down, reduced social security must be finished by individual efforts. In Japan there is a developing tension between those interested in assuring proper social solidarity degree and those interested in acquiring fair return on their own contributions of social security and several Japanese people are doubtful about the effectiveness and fairness of the system. Moreover, it is always said that social expenditure of Japanese people is biased overly towards the elderly. However, the survivor’s benefits and Japanese old age are not importantly high compared to those advantages in other developed countries. The focus on social solidarity issue versus self-help has shown higher theme of public debate about the limitations and role of social security system. It is somewhat clear that in Japan there is no broad consensus on the role of state in helping families. For more than 3 decades with below exchange birth rates there is no emphasis of policy on lowering down the childcare costs such as public provision of childcare, child/family allowances and leave for neither infant/family nor help for mothers as they try to reestablish childcare and employment. There are several causes that may describe the decline of birth rate (Letablier, 2008):
低出生率。表示的平滑的公共项目的情况下，公司削减福利的边缘，和个人责任感的增强，私人安排和公共系统之间的良好界面是不可能的（俯，2005）。社会保障即使负担下降，降低社会保障必须通过个人努力完成。在日本有一个发展的张力在保证适当的社会团结感兴趣，那些对自己的社会保障和几个日本人的贡献获得公平报酬感兴趣之间的有关系统的有效性和公平性的质疑。此外，它总是说，日本人的社会支出是有失偏颇的过度对老年人。然而，幸存者的效益和日本老年是不重要的是高相比，优势在其他发达国家。注重社会团结的问题与自助已表现出的局限性和社会保障制度的作用，公共辩论更高的主题。这是有点明显，在日本有对国家在帮助家庭的作用没有达成广泛共识。超过3年的出生率低于交易所没有强调降低儿童保育成本如儿童提供公共政策，儿童/家庭津贴和离开没有婴儿/家庭也没有母亲在他们试图重建育儿和就业帮助。有几个原因，可以描述人口出生率的下降（letablier，2008）：
