base rate:
Post-WWII US recessions (two consecutive negative quarters) occur in roughly 20-25% of any given 5-quarter window. The Q4 2026 - Q4 2027 window has 5 quarters, giving 4 possible consecutive pairs.
evidence updates:
Tariff shock and supply-side disruption push UP modestly (~5-8pp). Fed easing cycle, ongoing fiscal stimulus, and the fact that the 2022-23 yield curve inversion's typical lag has passed without recession push DOWN slightly. The technical BEA definition (vs NBER) makes it slightly easier to trigger.
combination method:
Weighted average across three sub-questions with adjustment for correlation since recessionary conditions tend to manifest together.
final:
My estimate of ~30% sits modestly above the historical base rate of 20-25%, reflecting elevated but not dominant recession risk from tariff shocks balanced against supportive Fed/fiscal policy. Consistent with my prior forecasts of 31-32%.
ensemble:
{'ensemble_count': 3, 'perspectives': {'base_rate': {'p_yes': 0.3, 'confidence': 0.4}, 'evidence_driven': {'p_yes': 0.3, 'confidence': 0.4}, 'contrarian': {'p_yes': 0.33, 'confidence': 0.4}}, 'spread': 0.03, 'individual_p_yes': {'base_rate': 0.3, 'evidence_driven': 0.3, 'contrarian': 0.33}}