Stagflation Watch: Cleveland Fed Nowcast Projects March CPI at 3.25%; Powell Harvard Debt Warning Resurfaces; S&P 500 Death Cross Persists

Despite the Iran ceasefire market relief, analysts on April 7 flagged unresolved stagflation signals embedded in the real-time economic data. The Federal Reserve Bank of Cleveland's Inflation Nowcasting tool projected the trailing 12-month CPI rate for March 2026 at approximately 3.25% — an 85-basis-point jump from February — reflecting oil-price pass-through from the Iran conflict combined with ongoing tariff-induced goods price pressure. The Atlanta Fed's GDPNow model tracked Q1 2026 real GDP growth at approximately 1.6%, below the 2.0% 'stall speed' threshold many economists associate with elevated recession risk. The S&P 500 still traded below both its 50-day and 200-day moving averages following the late-March 'Death Cross,' a technically bearish signal historically associated with sustained underperformance. Fed Chair Powell's March 30 Harvard appearance resurfaced prominently in analysis published April 7: Powell had told the 400-student Harvard economics seminar that the $39 trillion US debt path 'will not end well if we don't do something fairly soon,' noting that debt held by the public was projected to surge from 101% of GDP to 120% of GDP by 2036 — eclipsing the post–World War II record — while interest payments were projected to exceed $1 trillion in 2026. When asked directly about stagflation, Powell had said 'stagflation was a 1970s term' when unemployment was in double figures and inflation 'really high' — positioning current conditions as less severe. Markets saw the April 29–30 FOMC meeting as the defining decision point: cut rates (validating growth concerns) or hold (avoiding tariff-inflation entrenchment), with the Iran ceasefire providing some inflation relief but the China tariff escalation adding new inflationary pressure.