Very low fertility in Japan: Contextual- and individual-level determinants

• Project/Area Number: 22730428
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Sociology
• Research Institution: National Institute of Population and Social Security Research
• Principal Investigator: IWASAWA Miho 国立社会保障・人口問題研究所, 人口動向研究部, 第1室長 (50415832)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: 家族 / 親族 / 人口 / 意図しない出生 / 教育水準 / 出生 / 出生意図 / 結婚 / 離婚 / 生命表

Research Abstract

We demonstrated that how the patterns of marriage and marital dissolution, and incidence of unintended childbearing are differently experienced across educational groups. While highly educated women live longer in never-married status, less educated women experience longer period in divorced or remarried status. Unlike the US, highly educated women have higher risk of unintended childbirth possibly because of higher opportunity cost of childbearing.

Research Products

• [Presentation] Decline in Stable Marriage in Japan (2012)
  • Author(s): Iwasawa, Miho
  • Organizer: Marriage in Asia: trend, determinants and implication
  • Place of Presentation: シンガポール大学、シンガポール
  • Year and Date: 2012-11-16
• [Presentation] Educational Differences in Fertility Intentions in Japan (2012)
  • Author(s): Iwasawa, Miho, with Raymo, James,M., Kelly Musick
  • Organizer: Population Associ-ation of America
  • Place of Presentation: サンフランシスコ、米国
  • Year and Date: 2012-05-04
• [Presentation] Educational Differences in Fertility Intentions in Japan (2012)
  • Author(s): Raymo,James,M., Kelly Musick and Miho, Iwasawa
  • Organizer: Population Association of America
  • Place of Presentation: San Francisco, USA
• [Presentation] Decline in Stable Marriage in Japan (2012)
  • Author(s): Iwasawa, Miho, Fusami Mita and Yuriko Shintani
  • Organizer: Marriage in Asia: trend, determinants and implication
  • Place of Presentation: National University of Singapore, Singapore
  • Invited
• [Presentation] 意図しない出生の日米比較 : 教育水準別格差に着目して (2011)
  • Author(s): 岩澤美帆
  • Organizer: 日本人口学会
  • Place of Presentation: 京都大学
  • Year and Date: 2011-06-12
• [Presentation] 意図しない出生の日米比較:教育水準別格差に着目して (2011)
  • Author(s): 岩洋美帆(ジェームズ・レイモと共同報告)
  • Organizer: 日本人口学会
  • Place of Presentation: 京都大学
  • Year and Date: 2011-06-12
• [Presentation] Educational Differences in Marriage, Divorce, and Widowhood in Ja-pan: Demographic choices, norms, and gains in marriage (2011)
  • Author(s): Iwasawa, Miho
  • Organizer: AAS (Association of Asian Studies)- ICAS Joint Conference
  • Place of Presentation: ホノルル、米国
  • Year and Date: 2011-04-01
• [Presentation] Educational Differences in Marriage, Divorce, and Widowhood in Japan : Demographic choices, norms, and gains in marriage (2010)
  • Author(s): 岩澤美帆
  • Organizer: AAS(Association of Asian Studies)-ICAS Joint Conference
  • Place of Presentation: 米国ホノルル
  • Year and Date: 2010-04-01