The five coups that succeeded in Africa between 2020 and 2025 -- in Burkina Faso, Chad, Gabon, Guinea and Niger -- were not merely military interventions. They were, in the reading of a UNDP perception survey of over 8,000 people conducted after those events, expressions of a specific frustration: that the existing governments, whether formally democratic or formally autocratic, had failed to deliver inclusive development. The coups happened because the gap between what governments promised and what people experienced had become politically unsustainable. What a new Carnegie Endowment study asks is whether the form of government -- democratic or autocratic -- is the variable that explains that gap, or whether something else is doing the work.

The paper, written by Sarah Yerkes, Natalie Triche and Amr Hamzawy and published on 6 October 2026, is the second in a comparative governance series. It assesses four African countries across four governance categories: socioeconomics, access to information, rule of law, and civil liberties. The regime classifications use the V-Dem Liberal Democracy Index. Governance quality is measured through the Bertelsmann Stiftung Transformation Index. The period is 2015 to 2025. The four countries are Cameroon (autocracy, low-performing), Tanzania (autocracy, mid-performing), Senegal (democracy, higher-performing) and Namibia (democracy, mid-performing). The study's central finding is stated without qualification: democratic-leaning governments performed better than autocratic ones across all four categories.

The sharpest case is Cameroon. Paul Biya has held the presidency since 1982. The country's score on the World Justice Project Rule of Law Index is 0.36, placing it 134th of 143 countries assessed. Its Corruption Perceptions Index score has ranged between 25 and 27 over the past decade, near the bottom of the global distribution. Learning poverty -- the share of ten-year-olds unable to read a basic text -- stands at 72% as of 2022. The Anglophone Crisis, which began in 2017, has displaced around 600,000 people. Security forces reportedly killed approximately 50 people during protests following Biya's October 2025 re-election. The Carnegie authors describe Cameroon's elections as a facade that does not produce genuine political competition. Some 37% of Afrobarometer respondents who visited a clinic or hospital reported paying a bribe to receive care.

Tanzania presents a more ambiguous picture, which the Carnegie framework acknowledges. The CCM party has governed since independence, and the 1992 multiparty amendment did not disrupt its dominance. Growth reached approximately 6% in 2025 and literacy stands at 83%, both genuine achievements. But poverty remains at 47% and youth unemployment above 10%. Under Magufuli, fee-free primary education was introduced and infrastructure investment expanded, though Carnegie notes that corruption limited the impact of both. Journalist Azory Gwanda disappeared in 2017 with no credible investigation. Cybercrime laws have been used to detain critics. The 2025 elections involved restrictions on candidates and documented detentions. President Samia Suluhu's early liberalisation, noted as a genuine shift, reportedly reversed in 2024 and 2025.

Namibia scores better than Tanzania on rule of law and civil liberties despite severe socioeconomic inequality. The Gini index stands at 59.1, among the highest in the region. Unemployment exceeds 30%, and youth unemployment reportedly reached 46%. Poverty is above 38%. But Namibia's 1990 constitution established multiparty competition that has held for 35 years. When President Hage Geingob died in office in 2024, constitutional succession functioned without crisis. The opposition won key constituencies in the 2019 and 2020 elections, including Windhoek. An Access to Information Act was passed in 2022. Judicial independence is described as weakened by SWAPO's clientelist networks, but the baseline institutional architecture remains intact. Netumbo Nandi-Ndaitwah became the country's first woman president following the succession.

Senegal is the Carnegie study's strongest democracy case, and also its most complicated. The country has avoided coups since independence in 1960, which is notable in a regional context where five governments fell between 2020 and 2025. Growth runs at approximately 6%. Women hold 41.2% of National Assembly seats, following a 2010 parity law. Transparency International raised Senegal's CPI score by 10 points over the past decade. Transparency laws passed in late 2025 included asset declarations, access to information provisions and whistleblower protection described as the first of its kind in Francophone Africa.

The debit side is substantial. Debt-to-GDP is estimated at 132%. Under former president Macky Sall, debt equivalent to roughly a quarter of GDP was reportedly hidden from public accounts. Carnegie's sources attribute over 1,000 opposition imprisonments and 80 deaths to the Sall period. In early 2026, a law increased penalties for same-sex relationships. Current president Faye and former prime minister Sonko have clashed publicly; Sonko was replaced in May 2026. A parliament-strengthening law was rejected by the Constitutional Council in July 2026. The loss of USAID funding is described as straining civil society organisations that provided independent accountability. Senegal's democratic credentials are real. They are also contested in ways the headline governance scores do not fully capture.

Africa has reportedly lost over one trillion dollars to corruption over the past fifty years, per the Carnegie paper's regional framing. That figure is not disaggregated by regime type in the study, but the country-level data makes the mechanism legible. In Cameroon, bribery for basic health services is documented at 37% of clinic visitors. In Tanzania, infrastructure investment under Magufuli was partially neutralised by corruption within the procurement process. In Senegal, a quarter of GDP was hidden from public accounts during the Sall administration despite formal democratic institutions. In Namibia, SWAPO's clientelist networks compromise judicial independence even as the constitutional order holds. The Carnegie argument is not that democracies are uncorrupt. It is that democratic institutions -- press freedom, judicial independence, opposition competition, civil society -- create friction against extraction that autocratic systems structurally remove.

The Carnegie study classifies Senegal as a higher-performing democracy despite documented political repression, a hidden debt crisis and a new law increasing penalties for same-sex relationships. The classification rests on institutional indicators: press freedom scores, civil society space, electoral competitiveness, and the CPI trajectory. If those institutional indicators can coexist with the suppression of an opposition and the concealment of a quarter of GDP in public debt, the question GSBrief leaves open is this: what exactly is being measured when we classify a government as a democracy, and at what point does the classification cease to explain the governance outcome it is meant to predict?