What is centralization of political power index in Japan?

Centralization of political power index in Japan was 0.094 in 2025, according to V-Dem (2026) – processed by Our World in Data.

What is the highest centralization of political power index recorded in Japan?

The highest recorded value was 0.951 in 1868.

What is the lowest centralization of political power index recorded in Japan?

The lowest recorded value was 0.082 in 2000.

How does Japan rank for centralization of political power index?

Japan ranks 142nd out of 173 countries with data for 2025.

Is centralization of political power index rising or falling in Japan?

Over the last ten years it is down 1.1%. The long-run trend across the full record is volatile.

Where does this Japan data come from?

The figures come from V-Dem (2026) – processed by Our World in Data, published as part of Centralization of Political Power Index. Statizoid updates them automatically from the source API.

Centralization of Political Power Index in Japan

Name: Centralization of Political Power Index in Japan
Creator: V-Dem (2026) – processed by Our World in Data
License: CC BY 4.0 (Our World in Data)

Japan: Centralization of Political Power Index was 0.094 in 2025. ◆ Volatile

Latest (2025)

0.094

Change on year

unchanged

World rank

142nd

of 173 countries

All-time high

0.951

in 1868

All-time low

0.082

in 2000

Years of data

237

1789–2025

Centralization of Political Power Index in Japan, 1789–2025

Source: V-Dem (2026) – processed by Our World in Data.

Analysis

The most recent figure for centralization of political power index in Japan is 0.094, measured in 2025.

The figure is down 1.1% over ten years.

Over the whole period, centralization of political power index in Japan peaked at 0.951 in 1868 and was at its lowest, 0.082, in 2000.

That places Japan 142nd out of 173 countries with data for 2025, putting it in the bottom quarter.

The series is highly variable year to year, so single readings are best treated with caution.

Averages by decade

Decade	Average	Lowest	Highest	Years
1780s	0.95	0.95	0.95	1
1790s	0.95	0.95	0.95	10
1800s	0.95	0.95	0.95	10
1810s	0.95	0.95	0.95	10
1820s	0.95	0.95	0.95	10
1830s	0.95	0.95	0.95	10
1840s	0.95	0.95	0.95	10
1850s	0.95	0.95	0.95	10
1860s	0.9465	0.914	0.951	10
1870s	0.7163	0.584	0.837	10
1880s	0.5743	0.487	0.584	10
1890s	0.3275	0.327	0.332	10
1900s	0.3324	0.327	0.333	10
1910s	0.3299	0.321	0.336	10
1920s	0.322	0.322	0.322	10
1930s	0.3285	0.322	0.332	10
1940s	0.2634	0.106	0.332	10
1950s	0.0914	0.091	0.095	10
1960s	0.091	0.091	0.091	10
1970s	0.091	0.091	0.091	10
1980s	0.091	0.091	0.091	10
1990s	0.091	0.091	0.091	10
2000s	0.082	0.082	0.082	10
2010s	0.0898	0.082	0.095	10
2020s	0.0973	0.094	0.099	6

Countries ranked near Japan

139 Belgium 0.103 compare
139 Israel 0.103 compare
141 Mauritius 0.1 compare
143 Vanuatu 0.093 compare
144 Jamaica 0.087 compare
145 South Korea 0.086 compare

See the full ranking of 176 places →

More reference data data for Japan

Spring temperature anomalies 1.24 °C (2026)
Summer temperature anomalies 0.1053 °C (2026)
Temperature anomalies by month -0.7172 °C (2026)
Universal right to vote in practice 2 (2025)
Autumn temperature anomalies 1.9 °C (2025)
Winter temperature anomalies 0.5865 °C (2025)
Consumer price index 118.04 2010 = 100 (2025)
Universal right to vote 2 (2025)
Competitive elections 1 (2025)
Men's universal right to vote 1 (2025)

All data for Japan →

Frequently asked questions

What is centralization of political power index in Japan?: Centralization of political power index in Japan was 0.094 in 2025, according to V-Dem (2026) – processed by Our World in Data.
What is the highest centralization of political power index recorded in Japan?: The highest recorded value was 0.951 in 1868.
What is the lowest centralization of political power index recorded in Japan?: The lowest recorded value was 0.082 in 2000.
How does Japan rank for centralization of political power index?: Japan ranks 142nd out of 173 countries with data for 2025.
Is centralization of political power index rising or falling in Japan?: Over the last ten years it is down 1.1%. The long-run trend across the full record is volatile.
Where does this Japan data come from?: The figures come from V-Dem (2026) – processed by Our World in Data, published as part of Centralization of Political Power Index. Statizoid updates them automatically from the source API.

Download this data

CSV · JSON — 237 observations, free to reuse under CC BY 4.0 (Our World in Data).

About this data

Indicator: Centralization of Political Power Index
Source: V-Dem (2026) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 176 places, 29,802 data points, 1789–2025
Last refreshed: 07 August 2026

Central estimate of the extent to which the executive is unconstrained by the legislature, judiciary, electoral management body, and other oversight.