Which has higher centralization of political power index, Jamaica or Japan?

Japan, at 0.094 against 0.087 in Jamaica as of 2025.

How many years of comparable data are there for Jamaica and Japan?

126 years are reported by both, from 1900 to 2025.

Where does this data come from?

V-Dem (2026) – processed by Our World in Data, published as Centralization of Political Power Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Jamaica vs Japan: Centralization of Political Power Index

Jamaica

0.087

in 2025

Japan

0.094

in 2025

Jamaica rank

144th

Japan rank

142nd

Centralization of Political Power Index over time

Jamaica
Japan

How they compare

Japan currently reports 0.094 against 0.087 in Jamaica, a difference of 0.007.

That makes Japan's figure about 1.1 times Jamaica's.

The two have swapped places 4 times across 126 shared years of data; in 1900 it was Japan ahead.

Jamaica ranks 144th and Japan ranks 142nd of 173 countries.

Across the 13 decades both report, Jamaica averaged higher in 8 and Japan in 5.

Head to head by decade

Decade	Jamaica	Japan	Difference	Ahead
1900s	0.307	0.3324	0.0254	Japan
1910s	0.307	0.3299	0.0229	Japan
1920s	0.307	0.322	0.015	Japan
1930s	0.307	0.3285	0.0215	Japan
1940s	0.3022	0.2634	0.0388	Jamaica
1950s	0.2843	0.0914	0.1929	Jamaica
1960s	0.1983	0.091	0.1073	Jamaica
1970s	0.1809	0.091	0.0899	Jamaica
1980s	0.1507	0.091	0.0597	Jamaica
1990s	0.1404	0.091	0.0494	Jamaica
2000s	0.1107	0.082	0.0287	Jamaica
2010s	0.1035	0.0898	0.0137	Jamaica
2020s	0.0868	0.0973	0.0105	Japan

Averages of every year both report within each decade.

Frequently asked questions

Which has higher centralization of political power index, Jamaica or Japan?: Japan, at 0.094 against 0.087 in Jamaica as of 2025.
What is the difference in centralization of political power index between Jamaica and Japan?: 0.007, with Japan ahead.
How many years of comparable data are there for Jamaica and Japan?: 126 years are reported by both, from 1900 to 2025.
How do Jamaica and Japan rank globally for centralization of political power index?: Jamaica ranks 144th and Japan ranks 142nd of 173 countries.
Where does this data come from?: V-Dem (2026) – processed by Our World in Data, published as Centralization of Political Power Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Individual pages

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.