Replication Data for Japan Ishin no Kai's 2026 Osaka Election Study

Replication data and code for a study of Japan Ishin no Kai's electoral strength in Osaka during the 2026 House of Representatives election. The package includes analysis-ready data, codebooks, intermediate tables, and R scripts to reproduce the study's main figures and Online Appendix tables. It was authored by Masahiro Zenkyo and hosted on Harvard Dataverse, with a last update in June 2026.

Use Cases

• Reproduce electoral analysis figures based on the provided R scripts and intermediate tables.
• Study party strength in a specific region based on the description of Osaka-focused election data.
• Conduct secondary analysis on the analysis-ready data mentioned in the replication package.
• Validate statistical methods used in the original study based on the provided replication materials.

Strengths

• Includes R scripts and codebooks for full reproducibility of the original study's figures and tables.
• Last updated on 2026-06-25, indicating recent maintenance.
• Hosted on Harvard Dataverse, a recognized academic repository.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count, file formats, and data size are unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to its focus on Osaka, Japan.

Provenance

Source

Harvard Dataverse

Collection Method

Likely compiled for academic research and replication.

Time Range

Covers the 2026 House of Representatives election period.

Freshness

Last updated 2026-06-25 11:22:22; freshness should be verified.

Geography

Osaka, Japan