Great Depression Study Guide

📖 Core Concepts Great Depression (1929‑1939) – Worldwide economic collapse marked by falling GDP, soaring unemployment, bank failures, and deflation. Deflationary spiral – Prices fall while wages stay sticky, raising the real burden of debt and curtailing spending. Gold Standard – Fixed exchange‑rate system that forced countries to contract the money supply to preserve gold convertibility, spreading deflation internationally. Keynesian demand‑side view – Insufficient aggregate demand → lower output & employment; government should run deficits to boost demand. Monetarist view – Sharp contraction of the money supply (often due to central‑bank inaction) is the primary trigger of the depression. Debt‑deflation theory (Fisher) – Falling prices raise real debt burdens, prompting bankruptcies and further price declines. Smoot–Hawley Tariff (1930) – U.S. protectionist law that doubled average import duties, provoking retaliation and a >50 % collapse in world trade. New Deal – Series of U.S. fiscal and regulatory programs (public works, banking reforms, social security) aimed at relief and recovery. Expectation‑hypothesis – Restoring confidence that future inflation and income will rise can itself stimulate investment even before monetary expansion. --- 📌 Must Remember GDP decline: World GDP ↓ ≈ 15 % (1929‑1932); U.S. GDP ↓ ≈ 30 %. Unemployment peaks: U.S. ≈ 25 % (1933); some countries > 33 %. Money‑supply contraction: ≈ 35 % drop (U.S.) due to Federal Reserve inaction. Trade collapse: International trade ↓ > 50 % after 1930; U.S. exports fall $5.2 bn → $1.7 bn (1929‑1933). Gold‑standard exit dates: U.K. Sep 1931; U.S. & Italy 1933; France, Belgium, Switzerland 1935‑36. Bank failures: 9 000 of 25 000 U.S. banks closed by 1933 (≈ 36 %). Key policy dates: Smoot–Hawley Tariff Act – Jun 1930. Bank Holiday – Mar 1933. Executive Order 6102 (gold confiscation) – 5 Apr 1933. Recovery drivers: 1933‑38 monetary expansion + New Deal demand; WWII defense spending > 40 % of GDP by 1944. --- 🔄 Key Processes Debt‑Deflation Cycle (Fisher) Deflation → real interest rates rise. Debt overhang → borrowers default. Asset sales push prices lower → deeper deflation. Banks tighten credit → further fall in investment. Gold‑Standard Contraction Falling gold reserves → required reduction in money supply → price level falls → export competitiveness hurts → global deflation. New Deal Banking Reforms Bank Holiday → close banks → Treasury injects federal loans → sound banks reopen → confidence restored. Monetary Expansion Post‑Gold‑Standard Abandon gold → Federal Reserve can buy securities → M2 ↑ → nominal GDP rebounds. --- 🔍 Key Comparisons Keynesian vs. Monetarist Keynesian: Emphasizes fiscal stimulus (government spending, deficits) to raise aggregate demand. Monetarist: Blames inadequate money supply; stresses central‑bank actions (open‑market operations) over fiscal policy. Staying on Gold Standard vs. Leaving Early Stay: Deeper recession, slower recovery (e.g., U.S., France). Leave early: Faster rebound, more monetary flexibility (e.g., U.K., Argentina). Protectionism (Smoot–Hawley) vs. Free Trade Protectionism: Tariffs ↑ → retaliation → trade volume ↓ > 50 %. Free trade: Maintains export markets, mitigates output collapse. --- ⚠️ Common Misunderstandings “The New Deal ended the Depression.” Recovery began after 1933 monetary expansion; full employment only reached with WWII spending. “Gold was hoarded, not a problem.” Under the gold standard, private gold holdings limited reserves, forcing banks to cut credit. “All countries suffered equally.” Nations that devalued currency or left the gold standard recovered markedly faster. --- 🧠 Mental Models / Intuition “Deflation is a debt accelerator.” Think of a shrinking balloon (prices) that makes the rope (debt) feel tighter, prompting borrowers to cut spending. “Gold standard = a rigid plumbing system.” Pipes (money supply) can’t be widened when a leak (gold outflow) occurs, so flow to all rooms (economies) is restricted. “Tariff war = a traffic jam for global trade.” Each new duty is a roadblock; the more blocks, the slower the overall traffic (trade). --- 🚩 Exceptions & Edge Cases United Kingdom (1931) – Left gold standard but still experienced a brief industrial slump before a rapid recovery. Soviet Union – Minimal exposure to world trade; grew via state‑directed heavy‑industry investment, showing a non‑capitalist path. Japan (early 1930s) – Used currency devaluation + deficit spending, achieving a production boom despite global downturn. --- 📍 When to Use Which Diagnosing cause of a depression: Look for money‑supply data → Monetarist focus. Look for demand indicators (consumption, investment) → Keynesian focus. Choosing policy response: Severe monetary contraction → Prioritize central‑bank liquidity (open‑market purchases, abandon gold). Demand collapse with idle resources → Deploy fiscal stimulus (public works, deficit spending). Evaluating trade policy impact: If tariff rates ↑ sharply → expect reciprocal retaliation and trade volume fall. --- 👀 Patterns to Recognize Bank failure → confidence shock → further bank runs (feedback loop). Deflation + high nominal debt → real debt burden spikes → asset fire‑sales. Policy “mix” (monetary + fiscal) → accelerated recovery (e.g., post‑1933 U.S., WWII). Early gold‑standard exit → rapid inflation → export competitiveness improves. --- 🗂️ Exam Traps Distractor: “The New Deal alone reduced unemployment to pre‑Depression levels.” – Wrong; true decline occurred after WWII spending. Distractor: “All economists agreed the Smoot–Hawley tariff was the sole cause.” – Incorrect; it was a major shock but combined with monetary contraction and demand fall. Distractor: “Gold standard was abandoned only to fund the war.” – Misleading; many countries left earlier to regain monetary autonomy. Distractor: “Deflation automatically benefits debtors.” – Opposite; deflation raises the real value of debts, hurting borrowers. ---