Scan: Who will win the next Ghanian parliamentary election? — NDC

date	predicted	market price	confidence
2026-08-24	71%	61%	59%
2026-04-29	56%	57%	40%

1. Planner Fable 5 · Fermi decomposition + tool plan

Tools chosen: kalshi_direct kalshi_related polymarket_related claude_news gdelt_news wikipedia code_execution

Sub-questions (Fermi decomposition)

What is the current Kalshi market price for NDC winning the next Ghanaian parliamentary election, and how has it trended?
What is the historical base rate of the incumbent party retaining a parliamentary majority in Ghana's Fourth Republic elections (1992-2024)?
How is the current NDC government under President Mahama performing in approval ratings and recent polling since taking office in January 2025?
How is Ghana's economy (inflation, cedi stability, IMF program, growth) performing, and is it improving or deteriorating under NDC governance?
Who is likely to lead the NPP in 2028, and how unified/competitive is the opposition after its 2024 defeat?
Are there any electoral reforms, boundary changes, or political developments (e.g., third-party movements) that could alter the two-party dynamic before December 2028?

Planner reasoning

This asks whether the NDC will win Ghana's next parliamentary election (expected December 2028). NDC won a landslide in 2024, but Ghana has a strong pattern of two-party alternation between NDC and NPP. Key drivers are incumbent (Mahama/NDC) government performance, economic recovery, and historical base rates of incumbents retaining parliament. The Kalshi price is the primary anchor, cross-checked against Polymarket and news on Ghanaian politics.

2. Research Parallel tool calls

tool	status	time	items	summary
kalshi_direct	OK	0.2s	1	## This Market's Kalshi Data NDC (KXGHANAPARLI-28-NDC) - Current price (probability): 61.00% - 7-day price change: +2.00% - 30-day price change: +2.00% - Average daily volume: 1 contracts - Price range: 59.00% - 61.00% - Data points: 2 days
kalshi_related	OK	2.7s	2	2 related markets / summaries. series KXGHANAPARLI: 0 markets (skipped 2 no-signal) \| keyword 'Ghana election': ok \| keyword 'Ghana president': ok
polymarket_related	OK	2.6s	0	Scanned 100 active Polymarket markets, kept 0 matches. keyword 'Ghana election': 0 markets \| keyword 'Ghana parliament': 0 markets \| keyword 'NDC': 0 markets
claude_news	OK	27.3s	23	## Research Findings: Ghana 2028 Parliamentary Election Outlook Mahama/NDC Approval Trends - The June 2026 National Tracking Poll by Global InfoAnalytics reveals President Mahama's job approval rating climbed to 71%, the highest recorded for any president in the firm's tracking history since 2
gdelt_news	OK	101.3s	0	GDELT: 0 articles across 3 queries (lookback=60d). 'Ghana NDC Mahama approval': error HTTPSConnectionPool(host='api.gdeltproject.org', port=443): Read timed out. (read timeout=30) \| 'Ghana NPP 2028 election': error HTTPSConnectionPool(host='api.gdeltproject.org', port=443): Read timed out. (read tim
wikipedia	OK	2.7s	4	Fetched 4 Wikipedia entries (1 missing pages).
code_execution	OK	29.5s	0	## Base Rate Analysis: Incumbent Party Retention in Ghana's 4th Republic (1996–2024) Overall unconditional base rate: - Incumbent retained majority in 4/8 elections (50.0%); lost in the other 4/8 (50.0%) — a perfectly alternating pattern with no unconditional edge either way. **Conditional

3. Evidence Brief Sonnet 5 · 6691 chars

# Current state NDC (President Mahama) won the December 2024 election and holds a parliamentary majority; the next parliamentary election is due December 2028 (market closes Dec 2029 for resolution buffer). NDC is a first-term incumbent seeking re-election; Kalshi prices NDC at 61% to win the next parliamentary election outright. # Timeline of key events - 2024-12: NDC wins presidency and parliamentary majority, ending NPP's second term (confirmed, Wikipedia). - 2025-01: Mahama inaugurated; inflation stood near 23.5% (confirmed, adomonline.com). - 2025 (year): Cedi appreciates >40% vs USD, best-performing currency in Africa/2nd globally per Bloomberg (confirmed, allafrica.com/sbmintelligence). - 2025-12: IEA poll shows Mahama approval at 68% (reported, graphic.com.gh, retrospective in May 2026 article). - 2026-01-31: NPP holds early presidential primary; Bawumia wins with 56.48%, avoiding runoff (confirmed, graphic.com.gh/ghanaweb.com). - 2026-03: Mahama approval at 67% per Global InfoAnalytics (reported, rainbowradioonline.com). - 2026-04: Inflation falls to ~3.4%; BoG policy rate down to 14% from 27% (confirmed, adomonline.com). - 2026-05: IEA poll shows approval dropped to 58.9% from 68% (Dec 2025), citing electricity and corruption concerns (reported, graphic.com.gh). - 2026-06-15: Global InfoAnalytics records record 71% approval; 66% say country heading right direction (reported, rainbowradioonline.com). - 2026-07: NPP's Ashanti Regional Chairman "Chairman Wontumi" convicted, sentenced 20 years for illegal mining; emergency NPP meeting held (confirmed, citinewsroom.com). - 2026-07-27: IMF completes 6th/final ECF review, calls performance "broadly satisfactory," approves transition to 36-month Policy Coordination Instrument (confirmed, imf.org). - 2026-08-12: Global InfoAnalytics survey records 72% approval (reported, ghanaiantimes.com.gh). # Event Kalshi binary market: will NDC win Ghana's next (2028) parliamentary election? # Outcomes to forecast Yes (NDC wins) / No (NDC does not win) # Kalshi market anchor Current YES price: **61%**, up +2% over both 7-day and 30-day windows (range 59–61%). Very thin liquidity (avg daily volume ~1 contract, only 2 data points) — low confidence in price discovery/depth. Related market KXGHANAPRES-28-MBAW (Bawumia wins presidency) is priced at just 22%, implying strong market-implied expectation that NDC also holds the presidency and, by extension, parliament. # Sub-question answers 1. **Kalshi price/trend** — 61% YES, +2pp over past week and month; thin volume limits reliability (kalshi_direct). 2. **Historical incumbent base rate** — Ghana's 4th Republic shows a stark pattern: first-term incumbents seeking re-election are 4/4 (100%, ~90% smoothed), while second-term incumbents are 0/4 (always lose). NDC enters 2028 as a first-term incumbent, favoring retention (code_execution analysis). 3. **Mahama/NDC approval** — Volatile but generally strong: Global InfoAnalytics shows 67%→71%→72% (Mar–Aug 2026), while IEA shows a dip from 68% (Dec 2025) to 58.9% (May 2026) on electricity/corruption concerns. Both trackers still show majority approval (claude_news). 4. **Economy under NDC** — Sharp improvement: inflation fell from 23.5% (Jan 2025) to ~3.4% (Apr 2026); cedi appreciated 26–40%+ in 2025 (Africa's best performer); GDP grew ~6.0% in 2025; IMF completed final ECF review favorably (July 2026), transitioning to a lighter PCI program. Caveat: public debt (684.6bn cedis, Sept 2025) remains a currency-exposure risk (claude_news). 5. **NPP leadership/unity** — Bawumia confirmed 2028 NPP flagbearer (Jan 2026 primary, 56.48%), but party is reported fractured with grassroots disenchantment, internal dissent against his renomination, and a corruption scandal (Wontumi conviction, July 2026) damaging credibility (claude_news). 6. **Electoral reforms/third parties** — No evidence found of boundary changes, electoral reform, or credible third-party disruption to the two-party dynamic; research is silent on this front. # Key facts (high-confidence, factual) 1. [kalshi_direct] NDC parliamentary win priced at 61% YES; thin volume. 2. [kalshi_related] Bawumia (NPP) presidential win priced at only 22%. 3. [code_execution] First-term incumbents in Ghana's 4th Republic are 4/4 for re-election; second-termers 0/4. 4. [imf.org] IMF completed final ECF review July 2026, calling program "broadly satisfactory." 5. [adomonline.com] Inflation fell from 23.5% to ~3.4% under NDC; cedi appreciated substantially. 6. [graphic.com.gh/ghanaweb.com] Bawumia confirmed NPP 2028 flagbearer, Jan 2026. # Cross-market signals - Kalshi related: KXGHANAPRES-28-MBAW (Bawumia presidency) at 22% YES — implies ~78% chance NDC/other wins presidency, broadly consistent with NDC parliamentary favorite status. - Polymarket: No matching markets found (0 results). - Sportsbook implied: N/A (no betting market data for Ghana elections found). # Analyst opinions and speculation - Claude_news synthesis: NDC enters mid-term with strong (if volatile) approval and a historic economic turnaround, while NPP remains divided and scandal-hit under a twice-defeated Bawumia — a "favorable but not guaranteed" environment for NDC in 2028. - TheAfricaReport: NPP struggling with infighting and "looming leadership crisis," undermining credible opposition. # Directional lean per outcome - **Yes (NDC wins)**: Supported by strong economic performance (single-digit inflation, cedi strength, IMF program success), majority approval ratings (58–72% across polls), historical first-term incumbent advantage (100% win rate), and weak/divided opposition. - **No (NDC loses)**: Supported by Ghana's historical volatility (perfect two-term alternation pattern, small N caveat), softening IEA poll (58.9%, down from 68%), citizen concerns over electricity and corruption, and ~2.5 years remaining before election — ample time for reversal, plus debt/currency risk that could derail economic gains. # Gaps / unknowns - No direct parliamentary seat polling (only presidential approval proxies). - Kalshi market has extremely low volume/liquidity — price may not reflect deep informed consensus. - No data on constituency-level dynamics, redistricting, or third-party/independent candidate threats. - Election is ~2.5 years away; substantial time for approval/economic trajectory to shift. # Calibration anchors - Kalshi current YES price: **61%** (primary anchor). - Historical base rate: first-term incumbents 100% (4/4) re-election win rate in Ghana's 4th Republic; overall unconditional base rate 50/50. - Related market implies NPP presidential chances only ~22%, suggesting broader market sentiment favors NDC continuity.

4. Forecasters Fable 5 + GPT-5.6 Sol · in parallel

claude-fable-5

55% conf

Yes	70%
No	30%

Kalshi anchors YES at 61%, but that price rests on near-zero liquidity while multiple independent signals favor NDC: first-term incumbents are 4/4 in Ghana's 4th Republic, Mahama approval sits at 58-72% across trackers, inflation collapsed from 23.5% to ~3.4% with a strong cedi and favorable IMF exit, and the NPP is fractured under twice-defeated Bawumia (priced at only 22% for the presidency, implying ~78% NDC continuity). I adjust modestly above the thin market toward 70%, but cap there because the election is ~2.5 years away, IEA polling shows softening on electricity/corruption, and Ghana's electorate has proven volatile with debt/currency risks unresolved.

gpt-5.6-sol

64% conf

Yes	69%
No	31%

The 61% Kalshi YES price is the primary anchor, though its extremely thin liquidity weakens its price-discovery value. NDC’s position is strengthened by Ghana’s 4-for-4 record of re-electing first-term incumbents, Mahama’s 58.9–72% approval range, sharply lower inflation, cedi appreciation, and a favorable IMF review. Bawumia’s 22% presidential market price and reported NPP divisions further point toward NDC retaining parliament. I move only moderately above Kalshi because there is no parliamentary seat polling, approval has been volatile, and roughly 2.5 years remain for economic or political reversal.

5. Devil's Advocate Sonnet 5 · red-team critique

Both forecasts converge tightly (0.70/0.69) despite Kalshi's thin liquidity being explicitly flagged as unreliable (~1 contract/day, only 2 data points) — neither forecaster explores how much weight thin markets should actually carry versus fundamentals, yet both anchor within 9-10pp of the 61% price, suggesting insufficient independent reasoning from the base rate alone.

Neither forecaster addresses the small-N problem seriously: "4/4 first-term incumbents" is only 4 data points across Ghana's entire 4th Republic history, and treating this as near-certain (100%) rather than applying a regularized/Bayesian shrinkage (e.g., Laplace's rule suggesting ~83%, not 100%) likely overstates confidence in this base rate.

Both forecasts conflate presidential approval/election dynamics with the parliamentary election question specifically — the brief notes "no direct parliamentary seat polling (only presidential approval proxies)" and Ghana's parliamentary and presidential outcomes could diverge (e.g., coattail effects aren't guaranteed, split-ticket voting is possible), yet neither forecaster discounts for this proxy gap.

The IEA poll's sharp drop from 68% to 58.9% (a ~9pp fall in five months, attributed to "electricity and corruption concerns") is mentioned by both but treated as a minor caveat rather than a potential leading indicator of a longer-term erosion trend over the remaining 2.5 years — neither models a scenario where this decline continues linearly.

Neither forecaster meaningfully engages with tail risk: debt levels (684.6bn cedis) and currency-exposure risk are named in the brief as a real threat to reversing recent gains, but both treat this as a minor caveat rather than exploring a scenario where a debt/currency shock in 2027-28 rapidly erodes NDC's economic narrative advantage.

Both forecasts land at nearly identical probabilities (0.70 vs 0.69) with different stated confidence levels (0.55 vs 0.64) — this inconsistency between confidence and output convergence is not explained, and neither model addresses how "confidence" should translate to a wider or narrower distribution around their point estimate.

6. Aggregator Fable 5 · final calibrated forecast

66% (60% confidence)

Yes: 66% No: 34%

Both forecasters converge at ~0.70, moderately above the thin 61% Kalshi anchor, based on strong fundamentals: first-term incumbency (4/4 historically), majority approval, dramatic disinflation, and a divided NPP under twice-defeated Bawumia. The critique lands some valid points: Laplace-smoothed incumbency base rate is ~83% not 100%, the IEA poll shows erosion on electricity/corruption, there is no parliamentary-specific polling, and 2.5 years leave room for debt/currency shocks to unwind the economic narrative. These considerations warrant pulling slightly back toward the market anchor rather than fully endorsing the consensus premium. I settle at 0.66 — clearly favoring NDC given multiple independent supportive signals, but with appropriate humility about time horizon, small-sample base rates, and the proxy gap between presidential approval and parliamentary seats.

Pipeline Timing

Total pipeline time: 186.4s

Per-tool research timings shown in the Research section above.