AI Data Insight
In Q1 2026, the increase in public inventory for Japan's nominal GDP was reported at -10.4 billion yen, completely flat compared to the previous quarter, indicating stable government material reserves. Although there was no significant inventory restocking, public investment grew against the trend, benefiting from infrastructure and post-disaster reconstruction. Combined with the resilience of domestic demand and exports, this drove Japan's Q1 GDP expansion to exceed market expectations.