Deliberative Political Institutions Index in Iran
Iran: Deliberative Political Institutions Index was 0.284 in 2025. ◆ Volatile
Latest (2025)
0.284
Change on year
down 13.4%
World rank
143rd
of 175 countries
All-time high
0.783
in 1997
All-time low
0.023
in 1933
Years of data
126
1900–2025
Deliberative Political Institutions Index in Iran, 1900–2025
Source: V-Dem (2026) – processed by Our World in Data.
Analysis
Iran recorded 0.284 for deliberative political institutions index in 2025.
Compared with earlier readings it is down 13.4% on the previous year and down 48.9% over ten years.
Over the whole period, deliberative political institutions index in Iran peaked at 0.783 in 1997 and was at its lowest, 0.023, in 1933.
That places Iran 143rd out of 175 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.
Deliberative Political Institutions Index in Iran, year by year
| Year | Value | Change |
|---|---|---|
| 1900 | 0.051 | — |
| 1901 | 0.051 | +0.0% |
| 1902 | 0.051 | +0.0% |
| 1903 | 0.051 | +0.0% |
| 1904 | 0.051 | +0.0% |
| 1905 | 0.051 | +0.0% |
| 1906 | 0.192 | +276.5% |
| 1907 | 0.192 | +0.0% |
| 1908 | 0.192 | +0.0% |
| 1909 | 0.178 | -7.3% |
| 1910 | 0.205 | +15.2% |
| 1911 | 0.205 | +0.0% |
| 1912 | 0.205 | +0.0% |
| 1913 | 0.205 | +0.0% |
| 1914 | 0.205 | +0.0% |
| 1915 | 0.205 | +0.0% |
| 1916 | 0.205 | +0.0% |
| 1917 | 0.205 | +0.0% |
| 1918 | 0.205 | +0.0% |
| 1919 | 0.205 | +0.0% |
| 1920 | 0.205 | +0.0% |
| 1921 | 0.09 | -56.1% |
| 1922 | 0.09 | +0.0% |
| 1923 | 0.09 | +0.0% |
| 1924 | 0.072 | -20.0% |
| 1925 | 0.045 | -37.5% |
| 1926 | 0.029 | -35.6% |
| 1927 | 0.029 | +0.0% |
| 1928 | 0.029 | +0.0% |
| 1929 | 0.029 | +0.0% |
| 1930 | 0.029 | +0.0% |
| 1931 | 0.029 | +0.0% |
| 1932 | 0.029 | +0.0% |
| 1933 | 0.023 | -20.7% |
| 1934 | 0.023 | +0.0% |
| 1935 | 0.023 | +0.0% |
| 1936 | 0.023 | +0.0% |
| 1937 | 0.023 | +0.0% |
| 1938 | 0.023 | +0.0% |
| 1939 | 0.023 | +0.0% |
| 1940 | 0.023 | +0.0% |
| 1941 | 0.052 | +126.1% |
| 1942 | 0.237 | +355.8% |
| 1943 | 0.264 | +11.4% |
| 1944 | 0.264 | +0.0% |
| 1945 | 0.264 | +0.0% |
| 1946 | 0.384 | +45.5% |
| 1947 | 0.384 | +0.0% |
| 1948 | 0.568 | +47.9% |
| 1949 | 0.68 | +19.7% |
| 1950 | 0.68 | +0.0% |
| 1951 | 0.68 | +0.0% |
| 1952 | 0.68 | +0.0% |
| 1953 | 0.358 | -47.4% |
| 1954 | 0.186 | -48.0% |
| 1955 | 0.13 | -30.1% |
| 1956 | 0.076 | -41.5% |
| 1957 | 0.076 | +0.0% |
| 1958 | 0.076 | +0.0% |
| 1959 | 0.076 | +0.0% |
| 1960 | 0.076 | +0.0% |
| 1961 | 0.093 | +22.4% |
| 1962 | 0.078 | -16.1% |
| 1963 | 0.063 | -19.2% |
| 1964 | 0.052 | -17.5% |
| 1965 | 0.052 | +0.0% |
| 1966 | 0.052 | +0.0% |
| 1967 | 0.052 | +0.0% |
| 1968 | 0.052 | +0.0% |
| 1969 | 0.052 | +0.0% |
| 1970 | 0.052 | +0.0% |
| 1971 | 0.052 | +0.0% |
| 1972 | 0.052 | +0.0% |
| 1973 | 0.052 | +0.0% |
| 1974 | 0.052 | +0.0% |
| 1975 | 0.052 | +0.0% |
| 1976 | 0.052 | +0.0% |
| 1977 | 0.052 | +0.0% |
| 1978 | 0.052 | +0.0% |
| 1979 | 0.645 | +1140.4% |
| 1980 | 0.593 | -8.1% |
| 1981 | 0.554 | -6.6% |
| 1982 | 0.554 | +0.0% |
| 1983 | 0.522 | -5.8% |
| 1984 | 0.522 | +0.0% |
| 1985 | 0.522 | +0.0% |
| 1986 | 0.522 | +0.0% |
| 1987 | 0.522 | +0.0% |
| 1988 | 0.522 | +0.0% |
| 1989 | 0.605 | +15.9% |
| 1990 | 0.602 | -0.5% |
| 1991 | 0.602 | +0.0% |
| 1992 | 0.602 | +0.0% |
| 1993 | 0.602 | +0.0% |
| 1994 | 0.627 | +4.2% |
| 1995 | 0.608 | -3.0% |
| 1996 | 0.608 | +0.0% |
| 1997 | 0.783 | +28.8% |
| 1998 | 0.783 | +0.0% |
| 1999 | 0.783 | +0.0% |
| 2000 | 0.783 | +0.0% |
| 2001 | 0.783 | +0.0% |
| 2002 | 0.783 | +0.0% |
| 2003 | 0.783 | +0.0% |
| 2004 | 0.778 | -0.6% |
| 2005 | 0.65 | -16.5% |
| 2006 | 0.587 | -9.7% |
| 2007 | 0.587 | +0.0% |
| 2008 | 0.587 | +0.0% |
| 2009 | 0.589 | +0.3% |
| 2010 | 0.588 | -0.2% |
| 2011 | 0.597 | +1.5% |
| 2012 | 0.597 | +0.0% |
| 2013 | 0.542 | -9.2% |
| 2014 | 0.556 | +2.6% |
| 2015 | 0.556 | +0.0% |
| 2016 | 0.557 | +0.2% |
| 2017 | 0.494 | -11.3% |
| 2018 | 0.439 | -11.1% |
| 2019 | 0.45 | +2.5% |
| 2020 | 0.38 | -15.6% |
| 2021 | 0.381 | +0.3% |
| 2022 | 0.265 | -30.4% |
| 2023 | 0.264 | -0.4% |
| 2024 | 0.328 | +24.2% |
| 2025 | 0.284 | -13.4% |
Iran compared with similar countries
- Iran's 0.284 is below the median for upper middle income countries, which is 0.599, 47% of the median. (48 countries reporting)
- Iran's 0.284 is below the median for Middle East, North Africa, Afghanistan & Pakistan, which is 0.473, 60% of the median. (23 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1900s | 0.106 | 0.051 | 0.192 | 10 |
| 1910s | 0.205 | 0.205 | 0.205 | 10 |
| 1920s | 0.0708 | 0.029 | 0.205 | 10 |
| 1930s | 0.0248 | 0.023 | 0.029 | 10 |
| 1940s | 0.312 | 0.023 | 0.68 | 10 |
| 1950s | 0.3018 | 0.076 | 0.68 | 10 |
| 1960s | 0.0622 | 0.052 | 0.093 | 10 |
| 1970s | 0.1113 | 0.052 | 0.645 | 10 |
| 1980s | 0.5438 | 0.522 | 0.605 | 10 |
| 1990s | 0.66 | 0.602 | 0.783 | 10 |
| 2000s | 0.691 | 0.587 | 0.783 | 10 |
| 2010s | 0.5376 | 0.439 | 0.597 | 10 |
| 2020s | 0.317 | 0.264 | 0.381 | 6 |
Countries ranked near Iran
- 140 Central African Republic 0.289 compare
- 140 United Arab Emirates 0.289 compare
- 142 Cuba 0.286 compare
- 143 Saudi Arabia 0.284 compare
- 145 Comoros 0.275 compare
- 146 Bolivia 0.273 compare
More reference data data for Iran
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 3.47 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 12.01 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 26.62 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 1.34 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 26.62 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 11.62 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 3.84 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 46.54 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 109.46 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 7.3 (2050)
Frequently asked questions
- What is deliberative political institutions index in Iran?
- Deliberative political institutions index in Iran was 0.284 in 2025, according to V-Dem (2026) – processed by Our World in Data.
- What is the highest deliberative political institutions index recorded in Iran?
- The highest recorded value was 0.783 in 1997.
- What is the lowest deliberative political institutions index recorded in Iran?
- The lowest recorded value was 0.023 in 1933.
- How does Iran rank for deliberative political institutions index?
- Iran ranks 143rd out of 175 countries with data for 2025.
- Is deliberative political institutions index rising or falling in Iran?
- Over the last ten years it is down 48.9%. The long-run trend across the full record is volatile.
- Where does this Iran data come from?
- The figures come from V-Dem (2026) – processed by Our World in Data, published as part of Deliberative Political Institutions Index. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 126 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Central estimate of the extent to which political elites justify their positions, justify them with the common good, acknowledge counterarguments, consult elites in policy changes, and society deliberates policy changes.