The Wall Street Crash of 1929: HSC Modern History USA
“The Wall Street Crash of October 1929 and the causes of the Great Depression”
The October 1929 crash (Black Tuesday, 29 October) exposed a margin-fuelled bubble, but became the Depression through ~9,000 bank failures, a 30% fall in money supply the Fed let happen, Smoot-Hawley tariffs and gold-standard contagion.
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What this dot point is asking
NESA expects you to explain why the New York stock market crashed in October 1929 and how the Crash became the Great Depression of the 1930s. Strong answers integrate the 1920s bull market and its speculative excess, the structural weaknesses of the real economy, the brittle banking system, the policy failures of the Federal Reserve and Treasury, and the international transmission through the gold standard.
Through the 1920s ordinary Americans poured money into the stock market, much of it borrowed - you could put down just a tenth of the price and borrow the rest ("margin"). Prices rose so far, so fast, that people bought shares simply because they expected prices to keep rising, not because the companies were worth it. It was like a housing boom where everyone buys with a tiny deposit because "prices only go up".
In October 1929 the confidence snapped, prices tumbled, and everyone who had borrowed had to sell at once to repay their loans - which pushed prices down further. But the crash on its own was not the disaster. The disaster came afterwards: thousands of small banks ran out of money and shut, wiping out people's savings; about a third of the country's money simply vanished as banks called in loans and the central bank did nothing to stop it; the government slapped huge taxes on imported goods, so other countries hit back and world trade collapsed. A crash became a ten-year depression because the economy underneath was already weak - wages too low for ordinary people to buy what factories produced - and the people in charge made it worse instead of better.
The Dow peaked at 381 on 3 September 1929 and bottomed at 41 on 8 July 1932 (around 89 per cent down). Brokers' loans (margin) reached 8.5 billion dollars by September 1929. Black Thursday was 24 October 1929 (12.9 million shares); Black Tuesday was 29 October 1929 (16.4 million shares). The Crash became the Depression through around 9,000 bank failures (1930 to 1933), a roughly 30 per cent fall in the money supply (M2) the Federal Reserve let happen, the Hawley-Smoot Tariff (60 per cent, 17 June 1930), and gold-standard transmission abroad. Galbraith (1955) stresses speculative mania; Friedman and Schwartz (1963) make the Fed's monetary failure decisive.
The answer
The 1920s bull market
Stock prices rose modestly through the mid-1920s and then accelerated. The Dow Jones Industrial Average rose from around 100 in 1926 to 191 on 3 March 1928 and to its peak of 381 on 3 September 1929, a near-quadrupling. Trading volume rose from around 230 million shares in 1923 to 1,125 million in 1928.
The boom rested on three legs:
Margin. Brokers' loans (the credit financing margin purchases) rose from 1 billion dollars in 1920 to 8.5 billion by September 1929. Margin requirements were 10 per cent; a small fall in stock prices wiped out leveraged positions.
Investment trusts and holding companies. Pyramided structures like Samuel Insull's utility empire and Goldman Sachs Trading Corporation magnified gains and losses. The Insull empire collapsed in 1932 owing investors around 3 billion dollars.
The Florida real estate bubble (1925 to 1926) and its collapse had been a dress rehearsal. Investors moved capital from collapsed Florida real estate into rising stocks.
The Federal Reserve raised the discount rate from 3.5 to 5 per cent in February 1929 and to 6 per cent on 9 August 1929 to slow speculation. The hike came too late to deflate the bubble gently and too soon to be absorbed by the real economy.
The Crash
The market peaked at 381 on 3 September 1929 and drifted sideways through September. The fall accelerated in October.
- Black Thursday, 24 October 1929
- 12.9 million shares traded (around three times normal volume). Prices fell around 11 per cent at the open. A bankers' pool led by Charles Mitchell of National City Bank stepped in around midday and stabilised the close, with the Dow down only around 2 per cent.
- Black Monday, 28 October 1929
- The Dow fell 13 per cent in a day. The bankers' pool did not return.
- Black Tuesday, 29 October 1929
- 16.4 million shares traded (a record that stood until 1968). The Dow fell another 12 per cent. Around 14 billion dollars of paper wealth was destroyed in two days, around 30 billion dollars over two weeks.
- The slide
- The Dow fell from 381 on 3 September 1929 to 198 on 13 November 1929 (around 48 per cent), then rallied to 294 by April 1930, then fell continuously to its low of 41 on 8 July 1932. Total decline from peak to trough was around 89 per cent. The 1929 peak was not regained until 1954.
From crash to depression
A stock crash is not automatically a depression. The Crash became the Depression through three channels.
The real economy. Industrial production fell around 46 per cent from 1929 to 1933. Real GDP fell around 30 per cent. Investment collapsed from around 16 per cent of GDP to around 4 per cent. Unemployment rose from around 3 per cent (1929) to around 25 per cent (1933, around 13 million people).
The banking system. The American banking system had over 25,000 banks, mostly small, unbranched, and state-chartered. Around 9,000 banks failed between 1930 and 1933, mostly in the rural Midwest and South.
Key failures:
- Caldwell and Company, Tennessee, 7 November 1930, the largest bank failure to that date.
- Bank of United States, New York, 11 December 1930, with deposits of around 200 million dollars.
- The Kreditanstalt, Vienna, May 1931, propagating the panic to Central Europe.
- The Detroit banking holiday, 14 February 1933.
The Federal Reserve, designed in 1913 to be a lender of last resort, did not act. The money supply (M2) fell around 30 per cent from 1929 to 1933. Friedman and Schwartz (A Monetary History, 1963) argue this was the decisive failure.
Policy. The Hawley-Smoot Tariff (17 June 1930), Hoover's signature trade measure, raised average tariffs to around 60 per cent. Over 1,000 economists signed a public letter opposing it. Around 28 countries retaliated. World trade fell around 65 per cent between 1929 and 1934. The Revenue Act of 1932 raised income, estate, and excise taxes in the middle of the slump, deepening the contraction.
The international transmission
The gold standard linked currencies to fixed parities. A country running a balance of payments deficit lost gold, contracted its money supply, and forced deflation; one running a surplus accumulated gold but did not necessarily expand. The system transmitted the American shock abroad.
American capital flows to Europe reversed after 1928 as Wall Street drew investment home. Germany, dependent on short-term American loans under the Dawes (1924) and Young (1929) Plans, defaulted on reparations after the Hoover Moratorium (June 1931) and faced the collapse of the Danatbank in July 1931.
Britain left gold on 21 September 1931. The Sterling Area emerged. The United States held on to gold until April 1933, when Roosevelt's Executive Order 6102 (5 April 1933) banned private holding and the dollar was devalued from 20.67 to 35 dollars per ounce on 31 January 1934.
Historiography
John Kenneth Galbraith (The Great Crash 1929, 1955) is the foundational popular account; emphasises speculative mania and policy denial.
Milton Friedman and Anna Schwartz (A Monetary History of the United States 1867-1960, 1963) argue the Depression was made by the Federal Reserve's failure to prevent a 30 per cent collapse in the money supply.
Charles Kindleberger (The World in Depression, 1973) argues the absence of a hegemonic stabiliser (Britain was past it, the United States was not yet ready) is the key.
Barry Eichengreen (Golden Fetters, 1992) treats the gold standard as the central international mechanism.
Ben Bernanke (Essays on the Great Depression, 2000) integrates the credit channel and the gold standard.
A. Source response (5 marks). Source: a paraphrased extract from a 1930s monetarist-style critique arguing that the central bank's refusal to act as banks collapsed, not the stock panic, destroyed the economy. Explain the usefulness of this source for a historian investigating why the Depression was so severe.
The source reflects the monetarist interpretation later set out by Milton Friedman and Anna Schwartz (A Monetary History of the United States, 1963): that the decisive failure was the Federal Reserve allowing the money supply (M2) to fall by around 30 per cent as roughly 9,000 banks collapsed between 1930 and 1933. It is highly useful for the monetary channel, and it corroborates the record - the Fed, designed in 1913 as a lender of last resort, did not act, and the contraction of credit deepened the slump. Its usefulness is limited by what it downplays: the structural maldistribution of income and underconsumption, the Hawley-Smoot Tariff and the collapse of world trade, and the international transmission through the gold standard that Charles Kindleberger and Barry Eichengreen emphasise. The source is therefore very useful for explaining the depth of the contraction, but it must be read alongside the structural and international causes for a complete account.
Marker's note: a top response names the origin/perspective (the monetarist thesis), separates what the source is useful FOR (the monetary channel) from what it omits (structure and the international system), anchors this in specific own knowledge, and ends in a judgement rather than paraphrasing the extract.
B. Essay paragraph (from a 25-mark response on whether the Crash caused the Depression).
The clearest evidence that the Crash was trigger rather than fundamental cause lies in what happened after October 1929. The margin-fuelled bubble - the Dow at 381 on 3 September 1929, brokers' loans at 8.5 billion dollars with margin requirements of around 10 per cent - did collapse spectacularly, destroying paper wealth and cutting investment. Yet a crash need not become a depression: it was the brittleness of the structures underneath that mattered. Income was so unequally distributed (the top 1 per cent took around 23 per cent) that underconsumption already constrained demand; roughly 9,000 of the country's 25,000 small, unbranched banks then failed between 1930 and 1933, and the money supply fell by about 30 per cent as the Federal Reserve stood aside. As Milton Friedman and Anna Schwartz argue in A Monetary History of the United States (1963), this monetary collapse was the decisive amplifier - a verdict John Kenneth Galbraith (The Great Crash 1929, 1955) anticipates by treating the Crash itself as the exposure of mania and policy denial rather than the first cause. The Crash lit the fire; structural weakness and monetary failure let it spread.
Marker's note: the paragraph argues a single proposition (Crash as trigger, not fundamental cause), supports it with dated, quantified specifics, and sets two historians (Galbraith and Friedman/Schwartz) in genuine relation rather than as decoration. Sustained argument plus historiography is what lifts a paragraph into Band 6.
Read the verb first. "Explain the causes / Account for" wants causes weighed and ranked, not a story; "To what extent / Evaluate / Assess the view" wants a JUDGEMENT defending a thesis; "Assess the usefulness/reliability" of a source wants ORIGIN, MOTIVE and PERSPECTIVE, then a verdict. For source questions run O-M-P-U: Origin, Motive, Perspective, then Usefulness/limitation. On this topic, always make the trigger-versus-cause distinction explicit - the Crash is the spark, the bank failures, monetary contraction and protectionism are the fuel. Weave historians as a clash, not a list: pit Galbraith (speculative mania, policy denial) and Friedman/Schwartz (the Fed's monetary failure as decisive) against Kindleberger (the international hegemonic vacuum) and Eichengreen (the gold standard), then say which carries most weight and why. One historian used in genuine tension beats five name-dropped.
- Treating the Crash as the cause of the Depression
- The Crash exposed the structural weaknesses; bank failures, monetary contraction, and protectionism made them catastrophic.
- Confusing Black Thursday with Black Tuesday
- 24 October was the panic day; 29 October was the larger fall.
- Forgetting the Fed's role
- Friedman's monetary critique is now consensus; the Federal Reserve allowed money supply to collapse by around 30 per cent.
- Narrating the Crash days instead of arguing
- Listing 24, 28 and 29 October without explaining why a crash became a depression caps the response in the middle bands.
- Name-dropping historians without a clash
- Set Galbraith, Friedman/Schwartz, Kindleberger and Eichengreen in genuine tension and reach a judgement.
In one sentence
The Wall Street Crash of October 1929 (peak Dow 381 on 3 September 1929, Black Thursday on 24 October with 12.9 million shares traded, Black Tuesday on 29 October with 16.4 million, trough 41 on 8 July 1932) exposed the 1920s asset bubble and the structural weaknesses of the American economy and was transformed into the Great Depression through the collapse of around 9,000 banks (1930 to 1933), the Federal Reserve's failure to prevent a 30 per cent fall in money supply, Hawley-Smoot's 60 per cent tariffs of 17 June 1930, and the international gold standard's transmission of the shock abroad.
Examples in context
Example 1. The Wall Street Crash (24 to 29 October 1929). The Dow Jones fell from 381 (3 September 1929) to 198 (29 October) and to 41 (8 July 1932). Maury Klein (Rainbow's End, 2001) draws on broker records to document the panic dynamics. The Federal Reserve's failure to act as lender of last resort was identified by Milton Friedman and Anna Schwartz (A Monetary History of the United States, 1963) as the structural amplifier.
Example 2. The agricultural and structural causes. Agricultural distress predated 1929; commodity prices halved between 1920 and 1928. Charles Kindleberger (The World in Depression, 1973, 4th ed. 2013) treats the absence of a hegemonic lender as the international cause. The Smoot-Hawley Tariff (June 1930) deepened the contraction; Douglas Irwin (Peddling Protectionism, 2011) documents the global retaliation.
Try this
Q1. Source A is the New York Times front page for 30 October 1929. Using Source A and your own knowledge, explain the immediate causes of the Wall Street Crash. [5 marks]
- What the marker wants. Identify margin trading; cite the Fed's tightening; link to the cascade through bank failures.
Q2. Evaluate the extent to which the Wall Street Crash was the cause of the Great Depression. [25 marks]
- What the marker wants. Weigh the crash, monetary policy, agricultural distress, and international structure; use Klein, Friedman/Schwartz, Kindleberger.
Q3. Compare the views of Milton Friedman and Charles Kindleberger on the causes of the Great Depression. [10 marks]
- What the marker wants. Friedman (Fed monetary failure) versus Kindleberger (international hegemonic vacuum); judgement.
Exam-style questions
Questions in the style of NESA exam questions on this dot point, each with a worked answer. They are written by ExamExplained unless tagged "Past paper"; the year shows the paper a question is modelled on.
Practice (NESA)15 marksExplain the causes of the Great Depression in the United States.Show worked answer →
A 15-mark "explain" needs four developed causes and a synthesis.
- Thesis
- The Great Depression was the convergence of an asset bubble (the 1928 to 1929 stock boom), structural weaknesses in the real economy (income inequality, agricultural distress), a brittle banking system, and policy failure at the Federal Reserve and Treasury. The international gold standard transmitted the American shock to the world.
- The bull market and the Crash
- The Dow Jones rose from 100 in 1926 to 381 on 3 September 1929. Brokers' loans (margin) reached 8.5 billion dollars by September 1929. The Crash ran from Black Thursday (24 October 1929, 12.9 million shares traded) through Black Monday (28 October) to Black Tuesday (29 October, 16.4 million shares). The Dow fell from 381 to 198 by 13 November 1929, and to 41 by 8 July 1932.
- Structural weaknesses
- By 1929 the top 1 per cent took around 23 per cent of income. Underconsumption set in as production capacity outran working-class buying power. Farm income halved from 1920 to 1932. Around 800 banks failed annually through the late 1920s.
- Banking failure
- The American banking system had over 25,000 banks, mostly small and unbranched. Around 9,000 banks failed between 1930 and 1933. The Bank of United States (December 1930), the Caldwell collapse in Tennessee (November 1930), and the failure of the Kreditanstalt in Vienna (May 1931) propagated the panic. Money supply (M2) fell around 30 per cent from 1929 to 1933.
- Policy failure
- The Federal Reserve raised the discount rate from 3.5 to 6 per cent (August 1929) to slow speculation, then failed to act as banks collapsed. Mellon's "liquidationism" (advice to Hoover, 1931: "liquidate labour, liquidate stocks, liquidate the farmers") was Treasury orthodoxy. The Hawley-Smoot Tariff (17 June 1930, average rates around 60 per cent) provoked global retaliation.
Practice questions
Original practice questions graded from foundation to exam level, each with a full worked solution. Try them before revealing the solution.
foundation3 marksOutline three features of the 1920s bull market that made the stock market vulnerable to a crash.Show worked solution →
A 3-mark "outline" wants three distinct features, each in a sentence.
- Buying on margin
- Brokers' loans rose from 1 billion dollars (1920) to 8.5 billion by September 1929; with margin requirements around 10 per cent, a small price fall wiped out leveraged investors and forced selling.
- Pyramided investment trusts and holding companies
- Structures like Samuel Insull's utility empire and the Goldman Sachs Trading Corporation magnified both gains and losses.
- Speculative mania and over-valuation
- The Dow nearly quadrupled (around 100 in 1926 to 381 on 3 September 1929) far faster than company earnings, with the Florida land bubble (1925 to 1926) as a dress rehearsal.
- Marking criteria
- 1 mark each for three distinct, accurate features; do not simply narrate the Crash days.
foundation4 marksExplain how bank failures helped turn the Wall Street Crash into the Great Depression.Show worked solution →
A 4-mark "explain" needs a cause-and-effect chain with specific detail.
- A fragile system
- The US had over 25,000 banks, mostly small, unbranched and state-chartered, with no deposit insurance, so a local panic could collapse a bank overnight.
- The wave of failures
- Around 9,000 banks failed between 1930 and 1933 - Caldwell and Company (Tennessee, November 1930) and the Bank of United States (New York, December 1930) were early triggers.
- The monetary effect
- As depositors hoarded cash and banks called in loans, the money supply (M2) fell around 30 per cent, starving the economy of credit; the Federal Reserve failed to act as lender of last resort.
- The outcome
- Falling credit deepened the fall in spending and investment, converting a stock crash into a self-reinforcing depression.
- Marking criteria
- 1 mark for the fragility of the system; 1 mark for the scale/examples of failures; 1 mark for the 30 per cent monetary contraction and the Fed; 1 mark for linking this to the depression.
core5 marksSource A (paraphrased): An economist writing in the 1950s argued that the 1929 boom was driven less by sound investment than by a contagious belief that prices could only rise, sustained by easy margin credit, and that the authorities lacked both the will and the means to puncture the mania before it collapsed.
Using Source A and your own knowledge, explain the role of speculation in causing the Wall Street Crash. [5 marks]
Show worked solution →
A 5-mark "explain ... using the source" wants the source decoded, then linked to own knowledge.
- Decode the source
- The view is John Kenneth Galbraith's (The Great Crash 1929, 1955): the boom was a speculative mania - a self-feeding belief that prices could only rise - fuelled by margin credit, which regulators would not or could not deflate.
- Corroborate with own knowledge
- The Dow nearly quadrupled to 381 by 3 September 1929; brokers' loans reached 8.5 billion dollars at margin requirements of around 10 per cent. The Federal Reserve's discount-rate rise to 6 per cent (August 1929) came too late to deflate the bubble gently.
- Develop the link
- When confidence broke, margin calls forced mass selling; 12.9 million shares traded on Black Thursday (24 October) and 16.4 million on Black Tuesday (29 October), and the Dow fell to 198 by 13 November 1929.
- Marking criteria
- 1 mark for identifying the speculation/mania argument in the source; 1-2 marks for own knowledge on margin and the boom figures; 1 mark for the mechanism (margin calls forcing selling); 1 mark for linking source and knowledge to the Crash.
core6 marksSource B (paraphrased): A monetary historian writing in the 1960s argued that the slump of 1929 to 1933 need not have become the Great Depression: the decisive failure was that of the central bank, which allowed roughly a third of the nation's money to be destroyed as banks collapsed, rather than the stock market panic itself.
Assess the usefulness of Source B for a historian investigating why the Great Depression became so severe. [6 marks]
Show worked solution →
A 6-mark "assess the usefulness" rewards origin/perspective plus own knowledge, ending in a judgement.
- Origin and perspective
- Source B reflects Milton Friedman and Anna Schwartz (A Monetary History of the United States, 1963), the monetarist interpretation: the Federal Reserve's failure to prevent a roughly 30 per cent fall in the money supply (M2) - not the Crash - turned recession into catastrophe.
- Why it is useful
- It is highly useful for the monetary channel. It fits the record: around 9,000 banks failed (1930 to 1933), the Fed designed in 1913 as lender of last resort did not act, and the money supply collapsed. This view is now close to consensus.
- Limitation
- By foregrounding monetary policy it can understate other causes - the maldistribution of income and underconsumption, the Hawley-Smoot tariff and trade collapse, and Charles Kindleberger's international/hegemonic argument and Barry Eichengreen's emphasis on the gold standard.
- Judgement
- Very useful for explaining the depth of the contraction through the monetary channel, but it must be set alongside the structural and international causes for a complete account.
- Marking criteria
- 1 mark for the monetarist origin (Friedman/Schwartz); 1-2 marks for own knowledge corroborating the monetary collapse; 1-2 marks for a limitation naming a rival explanation; 1 mark for a judgement on usefulness.
exam25 marksTo what extent was the Wall Street Crash of 1929 the cause of the Great Depression in the United States?Show worked solution →
This is an extended-response/essay. Markers reward a sustained, evidence-based argument that addresses "to what extent" directly and weaves in historiography - not a narrative of the Crash.
Band-6 PLAN
- Thesis. The Crash was the trigger and the symptom, not the fundamental cause: it exposed a speculative bubble, but the slump became the Great Depression because of structural weaknesses (income maldistribution and underconsumption), a fragile banking system, monetary-policy failure at the Federal Reserve, and protectionism transmitted internationally by the gold standard. The Crash mattered most as the spark that set brittle structures alight.
- Argument 1 - The Crash as trigger (its real but limited role). The margin-fuelled bubble (Dow 381 on 3 September 1929; brokers' loans 8.5 billion dollars) collapsed in October 1929, destroying confidence and paper wealth and cutting investment. Yet a crash need not cause a depression - the 1987 crash did not. Galbraith (1955) stresses the mania, but treats the Crash as exposure, not first cause.
- Argument 2 - Structural and banking weakness (the deeper cause). The top 1 per cent took around 23 per cent of income; underconsumption and agricultural distress (farm income halved 1920 to 1932) meant demand could not absorb output. Around 9,000 banks failed (1930 to 1933) and the money supply fell around 30 per cent - the failure Friedman and Schwartz (1963) call decisive.
- Argument 3 - Policy and international transmission. Mellon's liquidationism, the Hawley-Smoot Tariff (60 per cent, June 1930) and the Revenue Act of 1932 deepened the slump; the gold standard transmitted the shock abroad. Kindleberger (1973) stresses the absence of a hegemonic stabiliser; Eichengreen (1992) the "golden fetters" of gold.
- Historiography. Set Galbraith (speculative mania and policy denial) against Friedman and Schwartz (monetary failure as decisive), Kindleberger (international hegemonic vacuum) and Eichengreen (the gold standard). The debate is precisely about whether the Crash, the Fed, or the international system was primary.
- Judgement. The Crash was the necessary trigger but not the sufficient cause; the transformation into depression was the work of monetary collapse, structural weakness and protectionism. "To a limited extent" the Crash caused the Depression - it lit a fire that fragile structures and policy failures allowed to spread.
MODEL PARAGRAPH (Argument 2)
The Crash could shake confidence, but it was the banking system and the structure of the real economy that turned a sharp recession into a decade-long depression. The United States entered 1929 with income so unequally distributed - the top 1 per cent taking around 23 per cent of national income - that mass-production output increasingly outran the capacity of ordinary Americans to buy it, the underconsumption thesis. Onto this brittle base fell a wave of bank failures: roughly 9,000 of the country's 25,000 mostly small, unbranched banks collapsed between 1930 and 1933, and as depositors hoarded cash and loans were called in, the money supply (M2) fell by about 30 per cent. As Milton Friedman and Anna Schwartz argue in A Monetary History of the United States (1963), this monetary contraction - which the Federal Reserve, designed in 1913 as a lender of last resort, failed to prevent - was the decisive amplifier that converted the post-Crash downturn into the Great Depression. The Crash, on this reading, lit the fire; the banking collapse and the Fed's inaction supplied the fuel.
Marker's note. A band-6 response keeps "to what extent" in view throughout - ranking the Crash against the structural, monetary and international causes rather than narrating October 1929 - anchors each claim in dated, quantified evidence, and sets at least two historians (Galbraith vs Friedman/Schwartz, with Kindleberger or Eichengreen) in genuine tension before reaching a graded judgement. Describing the Crash days without explaining why a crash became a depression caps the response in the middle bands.
exam25 marksAssess the view that the Great Depression in the United States was primarily the result of policy failure rather than structural economic weakness.Show worked solution →
This is an extended-response/essay. Markers reward a sustained, evidence-based argument that weighs the two factors named in the question and weaves in historiography - not a narrative.
Band-6 PLAN
- Thesis. Policy failure and structural weakness were interdependent: deep structural flaws (maldistribution, underconsumption, a fragile banking system) made the economy vulnerable, but it was policy failure - the Fed's monetary inaction, protectionism and pro-cyclical fiscal orthodoxy - that converted vulnerability into catastrophe. Policy was the more decisive variable because better policy could have contained the same structural shock.
- Argument 1 - Structural weakness as the precondition. Income maldistribution (top 1 per cent at around 23 per cent), underconsumption, agricultural distress (farm income halved 1920 to 1932) and a banking system of 25,000 mostly small unbranched banks made the economy fragile before any policy choice was made.
- Argument 2 - Policy failure as the amplifier. The Federal Reserve raised the discount rate to 6 per cent (August 1929) then failed to act as banks collapsed, allowing M2 to fall around 30 per cent; the Hawley-Smoot Tariff (June 1930) cut world trade by around 65 per cent; the Revenue Act of 1932 raised taxes mid-slump; Mellon's liquidationism shaped Treasury orthodoxy.
- Argument 3 - The interdependence and the international dimension. Policy and structure cannot be cleanly separated: the gold standard (a policy choice) transmitted the shock abroad, while structural bank fragility made monetary policy failure so destructive. Kindleberger frames this as an international-leadership failure.
- Historiography. Friedman and Schwartz (1963) make policy (the Fed) decisive - a policy-failure thesis; underconsumptionist and structural accounts stress maldistribution; Kindleberger (1973) and Eichengreen (1992) locate the cause in the international system and the gold standard. The question maps directly onto this debate.
- Judgement. Both mattered, but policy failure was the more decisive lever: the same structural weaknesses, met by a Fed acting as lender of last resort and by open trade, need not have produced a depression of this depth. Structure loaded the gun; policy pulled the trigger.
MODEL PARAGRAPH (Argument 2)
If structural weakness made the American economy vulnerable, it was policy failure that made the downturn catastrophic. The Federal Reserve, having raised the discount rate to 6 per cent in August 1929 to curb speculation, then stood aside as roughly 9,000 banks failed, allowing the money supply to contract by about 30 per cent between 1929 and 1933 - the failure Friedman and Schwartz (1963) place at the centre of their account. Fiscal and trade policy compounded the error: the Hawley-Smoot Tariff of June 1930 raised average duties to around 60 per cent and provoked retaliation that helped cut world trade by roughly 65 per cent by 1934, while the Revenue Act of 1932 raised taxes in the depths of the slump. Each of these was a choice, shaped by Mellon's liquidationist orthodoxy that the slump should be allowed to purge itself. The same structural fragilities, met by a central bank acting as lender of last resort and by open trade, need not have produced a depression of this severity - which is why policy failure, more than structure alone, explains the catastrophe.
Marker's note. A band-6 response weighs the two named factors throughout rather than listing causes, anchors every claim in dated, quantified evidence, and deploys historians in genuine tension (the monetarist policy-failure thesis against structural and international accounts) before reaching a graded judgement. Narrating the causes without ranking policy against structure caps the response in the middle bands.