Every national leader, scored across up to eight dimensions of tenure contribution — from governance and economy to politics and crisis response. Compare current form against the legacy they'll leave behind.
John Mahama served as President of Ghana. John Mahama holds a weak Legacy Rating of 56 out of 100.
The data & sources
The Legacy Rating of 56 is a derived blend of John Mahama's leadership dimensions, each computed from sourced public inputs — none estimated. Diplomatic Conduct — no country-level data; shown as "No data" rather than inferred. Governing-stability conditions score 60/100, renormalised over WGI, V-Dem and UCDP.
The risk read
For country-risk purposes, John Mahama's tenure reads as moderately stable: governing-stability conditions score 60/100. Crisis exposure 63/100 (High exposure); response 59/100 (In line with comparable crises). For the full opportunity, market-pulse and resilience read, see Ghana's nation page.
The strategic read
Governing conditions: stability 60/100. The sharpest institutional vulnerability is Institutional Integrity (37/100).
Crisis
Exposure
63/ 100
High exposure
Response
59/ 100
In line with comparable crises
High confidence · 3 crisis years in mandate
Worst year (2014) — shock drivers
Economic contraction81
Political-stability decline67
Each is a global percentile: how this year's shock compares to every country-year on record. Disaster shocks are not yet sourced (no open-licensed annual series).
Sourced from 6 mandate-years (2012–2017), 2 of 4 shock components present; damage ranked against 422 comparable crises.
Leadership Radar
Tenure Contribution
Uneven profile — 25-point spread from Economy to Institutional Integrity.
Country scores are blended with live World Bank data where available. Difficulty reflects the structural challenge of governing this nation — not the leader's individual performance.
Source: World Bank·Method: Unweighted average·✓ Reconstructable
Leadership Archetype
No distinct archetype
Uneven profile — 25-point spread from Economy to Institutional Integrity. No archetype rule matches that shape. This is a reading of the sourced stats — not a data gap.
SourceDerivedMethodRule-based classificationConfDeterministic✓ ReconstructableⓘArchetypes are derived automatically from the leadership stat profile — not hand-assigned. "No distinct archetype" means no classification rule matched; profile shape is assessed separately from the best-to-worst spread. A leader lacking enough sourced stats reads as "No data". A secondary archetype is added only when a stat scores exceptionally high.
Political Legacy
Legacy Rating
56
Assessment
ContestedDerivedDerived from the published Legacy Rating band — ≥84 Transformational · 72–83 Lasting · 60–71 Mixed · 42–59 Contested · <42 Negative.
Years Served
4
Peak Strengths
No dimension scored 70 or above.
Relative Weaknesses
Institutional Integrity37
Governance55
Post-Office Metrics
Macro Tailwind/Headwind Adjustment
—
External conditions during tenure
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Key questions
Who is John Mahama?
John Mahama is a former President of Ghana, from the National Democratic Congress.
How is John Mahama rated on NationsHelm?
John Mahama holds a weak Legacy Rating of 56 out of 100. It is a derived blend of sourced leadership dimensions — governance, communication, diplomacy and others — never an estimate.
Data coverage:107 Sourced·85 Derived|Scores refreshed: 2026-08-24·snap-20260824-c9f25cd0|Methodology:Reconstructable|Cite:How to cite
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Profile
Legacy Rating56.3as of 2026-08coverage 5/8
Role
President
Party
National Democratic Congress
Term
2012–2017
Country
Ghana
Political Position
LeftLeftRight
V-Dem V-Party — economic left–right (v2pariglef, expert-coded), high confidence, party position coded 2016.
SourceTenure record + derivedMethod
A note the moment a prediction resolves — and when the record changes. Free.
ⓘCrisis Exposure measures how severely a leader was tested — a peak-biased aggregate of per-year shock severity (conflict intensity, economic contraction and political-stability decline vs. recent normal) over the mandate. It is context, not a verdict: high exposure is neither good nor bad on its own. Crisis Response measures how the country fared during its genuine crisis years relative to comparable crisis episodes worldwide — country-years hit with the same shock severity. Higher = less national damage than peers at that severity. Leaders who never faced a major shock are marked Untested rather than rewarded. Per country-year, real WB/UCDP/WGI shocks are winsorised and percentile-ranked into a ShockSeverity; Exposure is the peak-biased mandate aggregate. Crisis years (severity ≥ 60) score Response = 100 − damage percentile among comparable-severity crises worldwide, then severity-weighted over the mandate. Untested = no major shock (never rewarded). Absent components are reweighted, never filled.
Politics
60
Crisis Response
59
Vision
—
Communication
—
Institutional Integrity
37
Source: World Bank + derived·Method: Contribution·✓ ReconstructableⓘEach dimension measures change under the leader relative to global trends — how the indicator moved over their tenure, net of the world's move over the same window — not the country's absolute level. A score near 60 means performance broadly matched the benchmark trajectory; above = improved the country's standing, below = declined. Governance / Economy / Politics / Institutional Integrity from World Bank WGI, WDI and V-Dem trajectories; Vision from the country's innovation rank (WIPO patents + UNESCO tertiary), former leaders only (patents lag ~3 years); Crisis Response (World Bank + UCDP + WGI, an absolute response-quality scale) and Communication (GDELT) from tenure signals; Diplomacy (Diplomatic Conduct) is active-only. A tenure under six months, or an indicator whose series hasn't reached the term, shows as no data. Full model on the Methodology page.
Stewardship
Inherited-strength lens · separate from the rating
—
Governance
—
Politics
—
Integrity
—
Innovation
—
0 of 4 groups eligible and sourced
Source: World Bank WGI + V-Dem + derived·Method: Stewardship·✓ ReconstructableⓘMeasures whether strong institutions inherited at the start of the tenure were preserved, improved or eroded. It does not reward the leader for inheriting a strong country. A metric qualifies only when the inherited baseline was at least 75 on its normalized scale; the score is the world-net change over the tenure on the single public scale (60 = preserved relative to global movement). Requires two or more eligible sourced groups, the six-month tenure floor and a post-tenure-start observation — otherwise No data, never a zero. Weights mirror the current-form groups (gov 0.17 · pol 0.15 · int 0.08 · vis 0.09), renormalized over what is eligible and sourced.
Strengths & Weaknesses
Top Strengths
Key Weaknesses
Institutional Integrity37
Perceived transparency and anti-corruption track record
Governance55
State management and policy execution capacity
Source: Derived·Method: Ranked by stat value·✓ ReconstructableⓘUp to 5 strengths (dimensions scoring 70+) and 5 weaknesses (scoring 57 or below), ranked from the leadership radar. Dimensions in the 58–69 benchmark band appear in neither column. Descriptions are fixed per dimension and don't vary by country. Dimensions without a sourced signal show as no data. Full model on the Methodology page.
ⓘ
Country scores are the unweighted average of scored World Bank indicators — the same model used on the nation's own page. Difficulty reflects structural constraints on governing this nation, independent of the current leader.
Weighted average
ConfMedium
✓ Reconstructable
ⓘLegacy Rating is the completed-tenure rating derived from sourced leadership dimensions and the recorded conditions of that tenure — on the published scale a score near 60 means the country broadly matched the benchmark trajectory over the mandate. Anything unsourced shows as no data. Full weights on the Methodology page.