The index
Leviathan Index 1.0 · Reference year 2025 · 96 countries
A macro-sociological comparison of state systems through Freedom, Order, Security and Control.
What is the Leviathan Index?
The Leviathan Index combines selected international indicators into sixteen subdimensions and four main dimensions. The resulting FOSK profile describes a country within those defined measurements. The overall LI score summarises its distance from an explicitly stated reference profile.
Version 1.0 contains 96 countries for which all sixteen subdimensions can be calculated under the specified rules. The reference year is 2025, but several inputs refer to earlier observations or multi-year periods. This is a comparison assembled for a reference year, rather than a completely synchronous observation of every country characteristic.
The countries are included through data availability. They are not a random or globally representative sample. An LI score is also not a comprehensive assessment of a society’s quality: the model does not directly measure all aspects of welfare, inequality, health, environmental conditions or human experience.
The four dimensions
F Freedom
Selected political, personal, informational and economic opportunities for action. These are structural freedoms; a national score does not establish that every individual can exercise them equally.
O Order
Selected aspects of institutional quality: constraints on government powers, government effectiveness, control of corruption and reliable regulatory enforcement.
S Security
Intentional homicide, terrorism, territorial state-based conflict deaths, and the effectiveness of criminal investigation and adjudication. S combines violence burdens with an institutional response component.
K Control
Selected forms of surveillance, information control, state physical repression and historical crisis restrictions. A higher K indicates greater measured control. It does not indicate better quality or the total amount of state activity.
K is calculated from its own indicators. It is not defined as 100 − F. Separate calculation rules do not establish that the dimensions are statistically independent or entirely distinct in meaning.
The FOSK matrix
Each dimension has four subdimensions. The following matrix preserves the core indicator assignments of version 1.0.
Sixteen FOSK subdimensions and their original indicator assignments| ID | Subdimension | Definition | Indicator or component | Original provider |
|---|
| F1 | Freedom of expression and information | Opportunities to express views and obtain alternative sources of information. | Freedom of Expression and Alternative Sources of Information Index (v2x_freexp_altinf) | V-Dem |
| F2 | Political freedom of action | Opportunities for political parties and civil society organisations to associate and operate. | Freedom of Association Index, thick (v2x_frassoc_thick) | V-Dem |
| F3 | Personal autonomy | Selected religious freedoms and freedom of movement within the country. | Freedom of religion (v2clrelig_ord) and domestic freedom of movement (v2xcl_dmove) | V-Dem |
| F4 | Economic freedom of action | Selected property rights and economic freedom as assessed through credit, labour and business regulation indicators. | Property rights (v2xcl_prpty) and Economic Freedom of the World, Area 5: Regulation | V-Dem; Fraser Institute |
| O1 | Rule of law | Institutional constraints on the exercise of government powers. | WJP Factor 1: Constraints on Government Powers | World Justice Project |
| O2 | Government and administrative effectiveness | Perceived quality of public services, administration and policy implementation. | Worldwide Governance Indicators: Government Effectiveness | World Bank |
| O3 | Impartiality and control of corruption | Perceived extent to which public power is protected from use for private gain. | Worldwide Governance Indicators: Control of Corruption | World Bank |
| O4 | Regulatory enforcement and institutional reliability | Effective and predictable enforcement of regulations. | WJP Factor 6: Regulatory Enforcement | World Justice Project |
| S1 | Protection against severe interpersonal violence | Burden of intentional homicide, measured per 100,000 people. | Intentional homicides per 100,000 people (VC.IHR.PSRC.P5) | UNODC, distributed through World Bank WDI |
| S2 | Effectiveness of law enforcement and criminal justice | Effectiveness of criminal investigations and timeliness and effectiveness of criminal adjudication. | WJP subfactors 8.1: Criminal investigation system is effective; 8.2: Criminal adjudication system is timely and effective | World Justice Project |
| S3 | Protection against terrorism | Selected burden of terrorism as measured by the multi-year GTI score. | Global Terrorism Index (GTI) | Institute for Economics & Peace |
| S4 | Protection against armed conflict | Deaths from state-based organised violence within the country's borders, per 100,000 people. | UCDP sb_total_deaths_best_cy, divided by 2025 population and multiplied by 100,000 | UCDP; World Bank WDI for population |
| K1 | Surveillance and data collection | Government monitoring of political social-media content and legal access to private internet content. | Government social-media monitoring (v2smgovsmmon_ord) and privacy protection by law (v2smprivcon_ord) | V-Dem |
| K2 | Information control | Government internet filtering and internet shutdown practices. | Government internet filtering in practice (v2smgovfilprc_ord) and government internet shutdown in practice (v2smgovshut_ord) | V-Dem |
| K3 | Coercion and repression | State physical repression, particularly torture and political killings. | Physical Violence Index (v2x_clphy), inverted | V-Dem |
| K4 | Crisis Leviathan | Intensity and duration of selected historical pandemic restrictions over a common period. | Own component: daily mean of normalised national OxCGRT C1–C8 indicators, averaged over 2020–2022 | Oxford COVID-19 Government Response Tracker; Leviathan Index construction |
Provider names identify the original source or the source of the underlying data. For S1, UNODC data are accessed through World Bank WDI; S4 also uses WDI population data. The downloadable codebook adds the fixed transformations and data years.
How is the index calculated?
Raw data → Normalisation → 16 subdimensions → FOSK dimensions → Distance to reference → Leviathan Index
Inputs are transformed to a common 0–100 scale. Existing bounded measures use their specified transformations. Intentional-homicide and territorial conflict-death rates use capped logarithmic transformations with frozen version 1.0 calibration limits. K4 is constructed from a daily historical series.
When a subdimension has two normalised components, they are equally weighted. Each main dimension is then the arithmetic mean of its four subdimensions. K4 first takes the equal daily mean of eight normalised C1–C8 components, then the equal mean over the 1,096-day period.
The theoretical reference vector is T = (100, 100, 100, 0), in the order F, O, S, K. Freedom, Order and Security increase towards their reference values. Control increases away from its reference value.
dF = (100 − F) / 100 · dO = (100 − O) / 100
dS = (100 − S) / 100 · dK = K / 100
Equal weights of 25% for each squared dimension distance
An LI of 100 denotes an exact mathematical match with the reference profile. Lower values denote a greater normalised Euclidean distance. A higher LI therefore indicates greater proximity under the chosen rules; it does not mean that a society is universally better, or that a point difference represents a percentage improvement.
The reference is normative. The analysis has not demonstrated that all four endpoints can be attained together, or that their combination is a legitimate or universally optimal social arrangement. The score is partly compensatory: a smaller distance in one dimension can offset a greater distance in another. That arithmetic is not a moral justification for any particular practice.
What does K = 0 mean?
Zero is the lower endpoint of the selected control measures. It does not describe a state without police, courts, taxation, administrative inspections or ordinary enforcement. These activities are not comprehensively represented in K.
Some source categories also allow “none or almost none” practices or exceptional lawful access while mapping to a zero control component. A numerical zero cannot always be read as the literal absence of every intervention. The index does not assess the necessity, proportionality or legitimacy of each recorded restriction.
Methodology and limitations
Sources and observation years
The model combines V-Dem, WJP, WGI, Fraser EFW, UNODC/WDI, IEP’s GTI, UCDP and OxCGRT. These sources include expert and survey assessments, modelled estimates and event data. Similar source methods and overlapping concepts can contribute to correlations between dimensions.
Fraser’s 2025 edition supplies 2023 observations. The homicide inputs in this ranking span 2020–2023. Most included V-Dem observations are from 2025; one Myanmar K1 input is from 2024. WJP edition years do not imply that every underlying population survey was conducted in that year. The GTI’s 2025 result includes multi-year weighting.
The historical pandemic component
K4 describes selected restrictions from 1 January 2020 to 31 December 2022. It is an original component built from OxCGRT C1–C8, with the relevant geographic flags, rather than a direct copy of Oxford’s Stringency Index. It measures historical intensity and duration. It does not measure control in 2025, future crisis powers or the health effectiveness of pandemic policy.
Weighting and sensitivity
The reference method uses equal weights at the stated aggregation levels. The manuscript examines 891 combinations of main-dimension weights, with each dimension between 20% and 30% in one-percentage-point steps and total weights of 100%. Further checks for eight selected countries vary security calibration limits and omit individual subdimensions. The country values on this website retain the original reference method.
These are deterministic scenario checks. Their rank ranges are not confidence or credible intervals. They describe sensitivity within the tested assumptions, rather than a probability that one country is “really” superior.
Uncertainty and causal interpretation
A complete propagation of source-specific measurement uncertainty to FOSK and LI has not been provided. Decimal places show a calculation’s presentation precision, not the certainty of the underlying measurements. Small point differences alone do not establish reliable qualitative superiority.
Cross-country associations, partial correlations and country-pair comparisons do not identify the effects of a specific intervention. Historical conditions, resources, social structure and causal direction require additional research. Neither the amount of necessary control nor the outcome of removing a measure can be derived from this single country comparison.
Coverage and aggregation
Country averages cannot describe all regional or group differences. The 96-country coverage reflects complete-case availability. Missing data are not treated as zero; countries without all sixteen subdimensions do not receive a complete LI in this ranking. Findings apply first to the included country profiles.
Always read LI together with F, O, S and K. Countries with similar composite scores can have substantially different profiles.
See data, source years and methodological documentation →