Tools chosen: kalshi_direct kalshi_related fred code_execution claude_news polymarket_related

Sub-questions (Fermi decomposition)

Planner reasoning

This is a very long-horizon macro question: whether US real GDP growth in calendar 2032 lands in the 2.1–2.5% bucket. With no near-term information, the answer is driven by (a) the historical distribution of annual US real GDP growth, (b) long-run consensus/CBO potential-growth projections centered near ~1.8–2.0%, and (c) the current Kalshi price and the shape of the full bucket ladder across the KXGDPYEAR-32 event. The plan anchors on the market price, pulls the full bucket ladder for de-vigged implied distribution, and computes an empirical base rate from FRED annual growth history.

# Event Kalshi market KXGDPYEAR-32-B2.3: resolves YES if US real GDP growth in 2032 falls between 2.1% and 2.5% (BEA annual figure). # Outcomes to forecast - Yes (2032 real GDP growth in 2.1%–2.5% band) - No (growth outside band) # Kalshi market anchor Current YES price: **20%** (up sharply from 10% a month ago; +9pp over both 7d and 30d). Price range over last 10 sessions: 10%–22%. Average daily volume ~1,249 contracts — decent liquidity. This is a rising, momentum-driven price, not yet stable. # Sub-question answers 1. **Kalshi YES price / implied bucket probabilities** — Current YES = 20% [kalshi_direct]. No full bucket sweep of KXGDPYEAR-32 was returned (kalshi_related found 0 KXGDPYEAR-32 comparables), so full-event normalization/de-vig across all 2032 buckets is unavailable; only this bucket's raw price is confirmed. 2. **Historical frequency (30–75yr)** — 1950–2024: 11/75 years (14.7%) fell in 2.1–2.5%; 1985–2024: 17.5%; 2000–2024: 28.0% (this recent window's mean growth of 2.14% sits almost exactly inside the bucket) [code_execution]. 3. **CBO/Fed long-run projections for 2032** — CBO (Feb 2026 baseline): growth averages **1.8%/year from 2027–2036**, covering 2032, i.e. below the 2.1–2.5% band; CBO potential GDP 2026–2030 averages 2.1% (right at low edge) but that potential-growth figure is not the same as actual near-term GDP growth, which CBO explicitly pegs near 1.8% by 2032 [claude_news, cbo.gov]. Fed SEP (June 2026): longer-run real GDP ~2.0% [forbes.com, tradingkey.com]. Both anchors center **below or at the low edge** of the 2.1–2.5% band. 4. **7-year-ahead forecast error / SD** — Not directly reported; code_execution's normal-fit sensitivity analysis uses SD assumptions of 1.8–2.2pp (typical annual GDP growth volatility), implying wide uncertainty bands around any 2032 point forecast. 5. **Cross-check via nearer-year Kalshi buckets** — No 2026–2028 KXGDPYEAR buckets returned; only 2035/2036 comparables available: 2036 "2.6–3.0%" bucket priced 10%, 2035 "1.6–2.0%" bucket priced 14% [kalshi_related]. These show adjacent-year buckets priced lower than this 2032 bucket's 20%, suggesting the market currently favors the 2.1–2.5% range as relatively likely for 2032 specifically (or reflects differing distributional assumptions by year). 6. **Resolution-source bias** — No rules/description on initial-vs-revised BEA vintage; standard Kalshi GDP markets typically use BEA's advance/initial annual estimate. Not explicitly confirmed here — gap. # Key facts (high-confidence, factual) 1. [kalshi_direct] KXGDPYEAR-32-B2.3 YES = 20%, up from 10% a month ago. 2. [FRED, A191RL1A225NBEA] Actual annual real GDP growth: 2024=2.8%, 2023=2.9%, 2022=2.5%, 2019=2.6%, 2017=2.5% — several recent years land near/at bucket edges. 3. [CBO, cbo.gov/publication/62050] CBO baseline: growth ~1.8%/yr from 2027–2036 (includes 2032). 4. [Fed SEP via forbes.com/tradingkey.com] Fed longer-run real GDP projection ~2.0%. 5. [code_execution] Empirical base rate for 2.1–2.5% band: 14.7% (75yr), 28.0% (2000–2024). # Cross-market signals - Kalshi related: 2036 "2.6–3.0%" bucket = 10%; 2035 "1.6–2.0%" bucket = 14% — both priced lower than this 2032 "2.1–2.5%" bucket at 20%, though not directly comparable buckets/years. - Polymarket: no matching GDP growth markets found — no cross-check available. - Sportsbook implied: N/A (not applicable to this event type). # Analyst opinions and speculation - CBO and Fed both project 2032 growth centered near 1.8–2.0%, just below or at the bottom edge of this bucket — suggesting the adjacent lower bucket (~1.6–2.0%) may be structurally favored over 2.1–2.5% per official long-run forecasts. - code_execution's reconciled estimate (blending empirical base rates with parametric/normal fit) suggests a "true" probability in the **12–20% range**, roughly consistent with current Kalshi pricing of 20%. - Recent-regime (2000–2024) growth has been unusually concentrated near 2.1–2.5%, but this partly reflects post-GFC/pre-AI-productivity-shift dynamics; CBO's AI productivity boost (+0.1pp/yr) and current administration policy effects add forward uncertainty not fully captured in historical base rates. # Directional lean per outcome - **Yes (2.1–2.5%)**: Supported by recent 25-year empirical base rate (28%), current 20% Kalshi price already elevated and rising (+9pp/month), and several recent actual years landing near this band. Opposed by CBO/Fed long-run central estimates (1.8–2.0%) sitting below the band. - **No**: Supported by CBO's explicit 1.8% 2032 forecast and Fed's 2.0% longer-run estimate, both outside/below the band; long full-sample historical base rate is also modest (14.7%). Given official forecasts cluster below 2.1%, "No" retains structural favor, but market pricing (20% YES, rising) suggests traders see meaningful uncertainty/8-year forecast noise favoring this specific bucket over adjacent ones. # Gaps / unknowns - No full multi-bucket 2032 price sweep to confirm normalization/de-vig sum across all KXGDPYEAR-32 outcomes. - No 2026–2028 KXGDPYEAR nearer-term Kalshi buckets found for direct pricing-convention cross-check. - BEA resolution vintage (advance vs. final annual estimate) not specified in rules — potential for revision-driven bucket-boundary risk. - 7-year-ahead forecast error/track record for CBO/Fed projections not directly quantified. # Calibration anchors - Kalshi current YES price: **20%** (anchor), up from 10% a month prior — momentum trending toward Yes. - Historical empirical base rates: 14.7% (75yr full sample), 17.5% (40yr), 28.0% (25yr recent). - CBO/Fed structural central estimates for 2032: ~1.8%–2.0%, just below/at band edge — a headwind to Yes. - Reconciled model estimate (code_execution): ~12–20%, closely bracketing current market price.

1. Both forecasters converge to identical 18% figures with nearly identical reasoning, suggesting insufficient independent analysis—neither explores why the market moved +9pp in a month (from 10% to 20%) or what specific news/data might justify that momentum before dismissing it as "noise or thin-market drift." 2. Neither forecast addresses the resolution-vintage ambiguity flagged in the brief (advance vs. final BEA estimate), which could matter significantly given growth is projected right at the bucket's lower boundary (2.1%)—revision risk could push a borderline year in or out of the band. 3. Both forecasts ignore the cross-market signal that adjacent-year buckets (2035 "1.6–2.0%" at 14%, 2036 "2.6–3.0%" at 10%) are priced lower than this 20% bucket, without examining whether this reflects genuine 2032-specific information or just differing time-decay/liquidity effects across contracts—this comparison deserved more explicit weighing rather than a passing mention. 4. Both anchor heavily on CBO/Fed point estimates (1.8-2.0%) as a "headwind" but neither quantifies the actual width of the forecast uncertainty distribution around those point estimates 7 years out—a wide SD (1.8-2.2pp per the brief) means the point estimate being "below the band" is weak evidence, since the band's midpoint (2.3%) is well within one SD of an 1.8-2.0% central forecast. 5. Neither model considers that if the true distribution is roughly normal centered near 1.9-2.0% with SD~2pp, the 2.1-2.5% band being immediately adjacent to (not far from) the mode could still capture non-trivial density, and neither shows a calculation reconciling this with the empirical 14.7-28% range to justify converging on the low end (18%) rather than the middle or upper end of that empirical range. 6. Both forecasts state confidence levels (0.55, 0.61) without justifying why confidence is only moderate given they landed on identical point estimates—this apparent independent convergence should either boost confidence or the closeness itself should be scrutinized as potential shared bias/anchoring on the same "reconciled model estimate" cited in the brief.

19% (58% confidence)

Yes: 19% No: 81%

The Kalshi price of 20% is the strongest anchor and sits inside the reconciled model range (12–20%) and between the long-run (14.7%) and recent-regime (28%) empirical base rates for this narrow 0.4pp band. CBO's ~1.8% and the Fed's ~2.0% central estimates sit just below the band, but with 7-year-ahead forecast SD of roughly 2pp, that point-estimate gap is weak evidence — the band's midpoint is well within one SD, so it should shade YES only slightly rather than heavily. A simple normal fit centered near 1.9–2.0% with SD ~1.9pp yields only ~8–10% for a 0.4pp band, while the empirical peaked distribution (fat left tail, mode near 2–3%) plus one-decimal BEA rounding (effectively ~0.5pp of coverage) pushes it back toward the mid-to-high teens. Balancing the critique's fair point that both forecasters mechanically converged on 18% against the observation that the +9pp price move is momentum without documented news, I settle at 19% — essentially at the market, marginally below it for the official-forecast tilt toward the adjacent lower bucket.

Total pipeline time: 121.7s