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 annual real GDP growth in 2032 lands in the 2.1–2.5% bin. With no near-term information, the answer is driven by (a) the Kalshi market's own distribution across bins, and (b) the historical/base-rate distribution of annual real GDP growth plus long-run projections (CBO, Fed SEP, potential-growth estimates), which cluster near 1.8–2.2%.

# Event US real GDP growth in calendar year 2032 falls between 2.1% and 2.5% (Kalshi ticker KXGDPYEAR-32-B2.3). # Outcomes to forecast - Yes (2032 growth lands in 2.1%–2.5% band) - No (growth outside this band) # Kalshi market anchor **Current YES price: 11.00%** (flat over 7d and 30d; range 10–22% over 4 data points; avg daily volume ~2,189 contracts). Market has been stable near the low end of its short trading history — no directional momentum. This is the consensus to beat. # Sub-question answers 1. **Full KXGDPYEAR-32 distribution/de-vig** — Not directly retrieved for the -32 series; only this bin's price (11%) is confirmed. Related-year analog series (2034: 8% for 1.6-2.0%; 2035: 9% for 1.6-2.0%; 2036: 3% for 6.1%+) suggest bins are priced narrowly (single-digit to low-teens), implying a fairly flat/dispersed implied distribution rather than one dominant bin. [kalshi_related] 2. **Historical frequency in 2.1–2.5% range** — Full sample 1948–2024 (n=77): 13.0% of years landed in-band. Post-1985 (n=40): 17.5%. Post-2000 (n=25): 28.0%, mean growth 2.15% almost centers the band. [code_execution] 3. **Official long-run projections** — CBO (Jan 2025/2026 vintage) projects 2031–2035 real GDP growth averaging **1.8%**, at/below the band's low edge. Fed SEP longer-run median raised to **2.0%** (March 2026, up from 1.8%). Both official baselines sit at or below 2.1%. [claude_news, CBO, FOMC] 4. **Dispersion/bin capture** — Using post-1985 sd (~1.69) or post-2000 sd (~1.76), a normal fit gives P(band)≈8.7–9.4% regardless of assumed mean within ±0.5pp — close to current Kalshi price. Using a tighter recent ex-COVID sd (0.44), capture rises to 19–34% if the true mean sits near 2.0–2.3%. [code_execution] 5. **Recession-year probability** — Not explicitly quantified in research, but historical base rate implies sub-1%/negative growth years occur roughly 15-20% of the time in modern samples (post-1985 recessions: 1990-91, 2001, 2008-09, 2020), which would push outcomes below this band. 6. **AI/structural factors** — Goldman Sachs projects potential growth accelerating to **2.3%** in early 2030s (within band) due to AI productivity gains; Penn Wharton estimates AI adds ~0.2pp to 2032 growth specifically; Deloitte revised 2030 growth up to 2.1%. These sit above CBO/Fed baselines, creating genuine forecaster disagreement centered right around the band's boundaries. [claude_news] # Key facts (high-confidence, factual) 1. [kalshi_direct] Current YES price for 2.1–2.5% bin = 11%, flat 7d/30d. 2. [FRED, GDPC1CTMLR/GDPC1MDLR/GDPC1RLLR] FOMC longer-run central tendency real GDP growth = 1.8–2.0% (2023–2026 vintages). 3. [claude_news, CBO] CBO projects 2031–2035 average real GDP growth of 1.8%, converging to potential. 4. [claude_news, Goldman Sachs] Goldman projects potential growth ~2.3% in early 2030s with AI acceleration — inside the band. 5. [code_execution] Empirical base rate of landing in this exact 0.4pp band: 13–28% depending on sample period (post-2000 highest at 28%). 6. [FRED, A191RL1A225NBEA] Recent actual annual growth: 2022=2.5%, 2023=2.9%, 2024=2.8%, 2025=2.1% — recent years have oscillated around/above the band. # Cross-market signals - Kalshi related (2034/2035 series): adjacent lower bins (1.6–2.0%) priced 8–9%, suggesting market spreads probability thinly across many bins rather than concentrating it. - Kalshi 2036 series: 6.1%+ bin priced only 3% (falling), showing market assigns low probability to high-growth tail outcomes far out. - Polymarket: no matching GDP/recession markets found — no cross-check available. - Sportsbook: not applicable. # Analyst opinions and speculation - Official/consensus forecasters (CBO, Fed SEP) lean toward growth centering just **below** or at the low edge of this band (~1.8–2.0%), favoring adjacent lower bins over this one. - AI-optimist private forecasters (Goldman Sachs, Deloitte, Penn Wharton) argue potential growth could rise into or through the 2.1–2.5% band by the early 2030s, which would favor "Yes." - Genuine, unresolved disagreement exists 7+ years out; no consensus view firmly places 2032 either inside or outside the band — this is inherently a coin-flip-among-several-bins problem for a single year, further complicated by recession risk uncertainty. # Directional lean per outcome - **Yes**: Supported by empirical base rate (13–28% depending on window), Goldman/Deloitte AI-driven acceleration forecasts placing potential growth in-band, and recent-year actuals (2022, 2025) landing near/in band. Opposed by CBO/Fed baseline projections sitting below the band and by any single-year volatility (recession risk) pulling growth below 2.1%. - **No**: Supported by CBO (1.8%) and Fed SEP (2.0%) both centering below/at the edge of the band, by long lead time (7 years) increasing recession/shock risk, and by the mathematical fact that a narrow 0.4pp bin rarely captures a single year's outcome even under normal-distribution assumptions (~9% under standard sd). Current Kalshi price (11%) roughly aligns with this "No"-favoring baseline. # Gaps / unknowns - Full de-vigged distribution across all KXGDPYEAR-32 bins not retrieved — only this bin's price is known, limiting relative-value assessment. - No explicit unconditional recession-probability figure computed for any single year 7 years out. - No Polymarket or sportsbook cross-check available for this specific event. # Calibration anchors - Kalshi current YES price: **11%** (primary anchor). - Empirical historical base rate for a 0.4pp band: 13% (full sample) to 28% (post-2000). - Normal-distribution model estimate using realistic modern sd: ~9–19%. - Official baseline forecasts (CBO 1.8%, Fed 2.0%) sit below/at band edge, modestly favoring "No" relative to raw historical base rates.

1. Both forecasters converge on nearly identical 13%/87% splits, essentially just replicating the Kalshi price with minor upward nudges—this lack of independent variance suggests insufficient engagement with the genuine forecaster disagreement noted in the brief (CBO/Fed at 1.8-2.0% vs. Goldman at 2.3%), which could justify a wider spread of estimates rather than convergence near the anchor. 2. Neither forecast explicitly grapples with sub-question 5 (recession probability ~15-20% historically), which if quantified would meaningfully thicken the left tail below 2.1% and could push "No" higher than 87% — this is treated as a vague offsetting factor rather than incorporated numerically. 3. Both forecasts under-weight the cross-market signal that adjacent bins (1.6-2.0%) in the related 2034/2035 series are priced at 8-9%, comparable to this bin's 11% — neither forecaster checks whether the full de-vigged distribution across all KXGDPYEAR-32 bins might sum to more or less than 100%, which could reveal whether 11% is actually rich or cheap relative to neighboring bins. 4. The brief notes CBO's 1.8% central estimate sits 0.3pp below the band's lower edge with modern-era sd of ~1.7-1.8, meaning a normal distribution centered at 1.8% (rather than at the band's midpoint) would likely give a materially lower in-band probability than the ~9% figure computed — both forecasters use the sd-only calculation without stress-testing sensitivity to the CBO-centered mean, likely making 13% too generous. 5. Neither forecast considers that this is a single-year outcome for a variable seven years out, where the tighter recent ex-COVID sd (0.44) — which would raise capture to 19-34% — might actually be the more relevant volatility regime if AI-driven growth stabilization occurs, yet both forecasters dismiss this scenario with only a passing mention rather than assigning it explicit weight. 6. Both forecasts label their confidence as "low" or "medium" while landing on the exact same three-decimal probability, which is suspicious for supposedly independent reasoning chains and suggests anchoring bias toward the Kalshi price rather than a truly evidence-driven synthesis.

12% (low-medium confidence)

Yes: 12% No: 88%

The Kalshi price of 11% is the primary anchor and is well-supported by a normal-bin capture model (~9% with modern-era sd ~1.7, and lower still if centered on CBO's 1.8% rather than the band midpoint). Mildly offsetting upside comes from the post-2000 empirical base rate (28%), recent actuals hovering at/near the band (2022=2.5%, 2025=2.1%), and AI-optimist potential-growth estimates (Goldman ~2.3%, Penn Wharton +0.2pp) that sit inside the band; a small weight on a low-volatility regime (sd ~0.44) also lifts capture. The critique's strongest point — that a CBO-centered mean plus 15-20% single-year recession/shock risk thickens the left tail — argues against straying far above the market, while the tight-sd scenario argues the other way, so these roughly cancel. Cross-market evidence that neighboring bins price at only 8-9% suggests the market spreads mass thinly and that 11% is not obviously cheap. I finalize at 12.5% Yes, a very slight premium to the market for the historical base rate and AI-upside tail, well inside consensus territory.

Total pipeline time: 115.0s