September 2025
Economic Trends Research, August 2025
The domestic economy improved for three consecutive months
— Driven by the heatwave boosting demand across various industries and nationwide construction needs —
Trend in August 2025: Upward Trend
The Economic Diffusion Index (DI) in August 2025 increased by 0.5 points from the previous month to 43.3, improving for the third consecutive month.
Despite uncertainties surrounding U.S. tariff policies, the heatwave led to a surge in demand from upstream to downstream industries, along with nationwide construction activity, contributing to the continued upward trend in the domestic economy.
Future outlook: Remain unchanged
While monitoring the direction of real wages, the domestic economy is expected to remain unchanged for the time being.
Primary points of survey results(summary)
- 1 By industry: Improvement in 9 out of 10 industries, with the summer holiday boom serving as a positive factor.
- 2 By scale: All sizes improved for the first time in 11 months, with "large firms" seeing growth for four consecutive months.
- 3 By region: 8 out of 10 regions showed improvement, with nationwide construction demand acting as a positive driver.

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