TY - JOUR AU - Horioka,Charles Yuji AU - Suzuki,Wataru AU - Hatta,Tatsuo TI - Aging, Saving, and Public Pensions in Japan JF - National Bureau of Economic Research Working Paper Series VL - No. 13273 PY - 2007 Y2 - July 2007 UR - http://www.nber.org/papers/w13273 L1 - http://www.nber.org/papers/w13273.pdf N1 - Author contact info: Charles Y. Horioka Institute of Social and Economic Research Osaka University 6-1 Mihogaoka, Ibaraki-shi Osaka-fu 567-0047 JAPAN Tel: 81-6-6879-8586 Fax: 81-6-6878-2766 E-Mail: horioka@iser.osaka-u.ac.jp Wataru Suzuki Tokyo Gakugei University 4-1-1, Nukuikita-machi Koganei City Tokyo 184-8501 JAPAN E-Mail: w-suzuki@u-gakugei.ac.jp Tatsuo Hatta National Graduate Institute for Policy Studies 7-22-1, Roppongi, Minato-ku Tokyo 106-8677 JAPAN E-Mail: hatta@grips.ac.jp AB - We analyze the impact of population aging on Japan's household saving rate and on its public pension system and the impact of that system on Japan's household saving rate and obtain the following results: first, the age structure of Japan's population can explain the level of, and past and future trends in, its household saving rate; second, the rapid aging of Japan's population is causing Japan's household saving rate to decline and this decline can be expected to continue; third, the pay-as-you-go nature of the public pension system, combined with rapid population aging, created considerable intergenerational inequities and increased the saving rates of cohorts born after 1965, which in turn slowed the decline in Japan's household saving rate; and fourth, the 2004 public pension reform alleviated the intergenerational inequities of Japan's public pension system somewhat but will in the long run exacerbate the downward trend in Japan's household saving rate. ER -