Due to emergency maintenance to enhance security, SSJDA Direct was unavailable from approximately 11:00 p.m. on October 21 to 3:55 p.m. on October 22, 2026 (JST). The service has now been restored and is available as usual.

The SSJDA seminar "Connectedness, Response Loading, and Network Resilience under Financial Uncertainty"(24 November 2026)

Due to emergency maintenance to enhance security, SSJDA Direct has been unavailable since around 11:00 p.m. (JST) on October 21, 2026. We will provide an update as soon as the expected date and time for service resumption is determined.

SSJDA Direct experienced a system outage between approximately 6:45 PM on October 13 and 8:30 AM on October 14 (JST), during which login and other services were unavailable. The issue has now been resolved, and the service is operating normally.

CSRDA Discussion Paper Series No.141 "School Belonging of Students with Immigration Background in Japan: Evidence from TIMSS 2015, 2019, and 2023″

[Event] CSRDA International Workshop 2026 "Asking participants for their informed consent to link their survey responses to administrative data - and the puzzle about online surveys" (October 26, 2026)

New data have been released

[Repost] All network services, including SSJDA Direct, will be unavailable from 8:00 A.M. to midnight (JST) on September 27, 2026, due to scheduled network maintenance.

CSRDA Discussion Paper Series No.140 "Diagnosing Industry Network Resilience under Financial Uncertainty: An Auditable Public-Data Framework Using Fama-French 49 Industry Portfolios″

CSRDA Discussion Paper Series No.139 "Another Look at Primary and Secondary Effects: Causal Decomposition of Inequalities in Educational Opportunity″

All network services, including SSJDA Direct, will be unavailable from 8:00 A.M. to midnight (JST) on September 27, 2026, due to scheduled network maintenance.

[Important notice] SSJDA will stop data usage application service from July 31 (Fri) to August 23 (Sun), 2026, Japan time. Early application is greatly appreciated.

SSJDA Direct will be unavailable on August 3 and 4 (all day), 2026 due to maintenance.

The CSRDA website will be unavailable from 9:00 A.M. to 6:00 P.M. (JST) on June 15, 2026, due to scheduled maintenance.

Call for presenters for SSJDA Seminar and submissions to CSRDA Discussion Paper Series.

SSJDA Direct will be unavailable from 9:00 A.M. to 6:00 P.M. (JST) on May 26, 2026, due to maintenance.

CSRDA Discussion Paper Series No.138 "The Role of Women's Employment and Educational Assortative Mating for Earnings Inequality in Japan,1982-2017: The Importance of Gendered Life Course Patterns″

CSRDA Discussion Paper Series No.137 "Delaying University Entry as a Class Strategy: Ronin and Educational Inequality in Japan's Standardized System″

CSRDA Discussion Paper Series No.136 "Delayed Educational Inequality after the COVID-19 Pandemic: Vertical Stability and Horizontal Divergence in University Enrollment in Japan″

CSRDA Discussion Paper Series No.135 "Perceived Helpfulness of Workplace Support for Combining Infertility Treatment and Work: Occupational and Organizational Differences in Japan″