The New Deal was a series of federal programs, public works projects, financial reforms, and regulations enacted in the United States between 1933 and 1939 under President Franklin D. Roosevelt in response to the Great Depression. The term derives from Roosevelt's acceptance speech at the 1932 Democratic National Convention, in which he pledged a “new deal for the American people.” The New Deal substantially expanded the scope and scale of the federal government and reshaped the relationship between citizens, private enterprise, and the state. It is among the most debated episodes of domestic policy in American history, and it remains a subject of sustained scholarly, economic, and political debate.

The New Deal emerged in the context of the Great Depression, which began with the stock market crash of October 1929 and deepened through the early 1930s into the worst economic contraction in American history. By the time Roosevelt took office on March 4, 1933, national unemployment stood at approximately 25 percent, thousands of banks had failed, agricultural prices had collapsed, and industrial output had fallen dramatically. For a detailed account of the origins, phases, and legacy of the New Deal, see New Deal – History.

The New Deal is conventionally divided into two phases. The First New Deal (1933–1934) focused on emergency relief and economic stabilization. Major initiatives included the Emergency Banking Act, the Federal Deposit Insurance Corporation (FDIC), the Agricultural Adjustment Act (AAA), the National Industrial Recovery Act (NIRA), the Civilian Conservation Corps (CCC), and the Public Works Administration (PWA). The Second New Deal (1935–1938) introduced longer-term structural reforms, including the Social Security Act, the National Labor Relations Act (Wagner Act), the Works Progress Administration (WPA), and the Fair Labor Standards Act. Together these programs touched agriculture, banking, labor relations, energy, housing, and the arts.

The Supreme Court struck down several major New Deal statutes, including the NIRA (1935) and key provisions of the AAA (1936), as exceeding congressional authority under the Commerce Clause. Roosevelt subsequently attempted in 1937 to expand the size of the Supreme Court — the so-called “court-packing” plan — but the effort failed in Congress.

The New Deal produced a large and measurable expansion of federal employment, public infrastructure, and regulatory capacity. Unemployment declined from its 1933 peak but remained elevated, by most measures above 14 percent, through the end of the decade; it fell sharply only after military mobilization beginning in 1940–1941. National income and industrial production recovered partially but unevenly. Banking panics ceased following the introduction of deposit insurance. Labor union membership grew substantially under the protections of the Wagner Act. Many New Deal agencies and programs — including Social Security, the FDIC, the Securities and Exchange Commission (SEC), and the Tennessee Valley Authority (TVA) — remain in operation.

Whether these outcomes resulted from New Deal policies specifically, from natural recovery, or from other factors is among the central contested questions in economic history. See New Deal – Economic Effects Debate.

There is broad consensus among historians that the New Deal represented a transformative expansion of federal authority and permanently altered the structure of American governance. The question of whether New Deal policies shortened or prolonged the Depression, and their net effect on economic welfare, remains contested among economists. See New Deal – Economic Consensus for the current state of scholarly agreement and the main points of disagreement.

The New Deal has generated sharply divergent assessments across ideological traditions. The major viewpoints are:

• Liberal / Progressive Defense — The New Deal rescued American capitalism from collapse, provided essential relief to suffering Americans, established durable foundations for the modern welfare state, and demonstrated that democratic government could manage economic crises without resorting to authoritarianism.

• Free-Market / Classical Liberal Critique — New Deal programs extended and deepened the Depression by distorting price signals, cartelizing industry, reducing labor market flexibility, and creating regime uncertainty that suppressed private investment; the recovery came despite, not because of, federal intervention.

• Left / Socialist Critique — The New Deal preserved and stabilized capitalism rather than transforming it; it largely excluded black Americans and agricultural and domestic workers from its protections, and it pacified working-class political energy that might otherwise have produced more fundamental change.

• Constitutionalist / States' Rights Critique — The New Deal effected an unconstitutional centralization of power in the executive branch and the federal government, undermining federalism, separation of powers, and constitutional limits on commerce regulation.

• Revisionist Economic Assessment — Recent macroeconomic scholarship, drawing on monetary theory and cross-national comparisons, attributes the Depression's severity and duration primarily to monetary contraction and gold standard constraints, with New Deal fiscal policy playing a secondary or ambiguous role.

• New Deal – History
• New Deal – Economic Effects Debate
• New Deal – Economic Consensus
• New Deal – Constitutionality Debate
• Roosevelt Court-Packing Plan
• Great Depression
• Franklin D. Roosevelt
• Keynesian Economics
• American Federalism
• Social Security

1. Roosevelt, Franklin D. “Address Accepting the Presidential Nomination at the Democratic National Convention in Chicago,” 2 July 1932. The American Presidency Project. https://www.presidency.ucsb.edu/documents/address-accepting-the-presidential-nomination-the-democratic-national-convention-chicago-1
2. Lebergott, Stanley. Manpower in Economic Growth: The American Record since 1800. New York: McGraw-Hill, 1964. Unemployment series, Table A-3.
3. Schechter Poultry Corp. v. United States, 295 U.S. 495 (1935); United States v. Butler, 297 U.S. 1 (1936).
4. Romer, Christina D. “What Ended the Great Depression?” Journal of Economic History 52, no. 4 (1992): 757–784.
5. Friedman, Milton, and Anna Jacobson Schwartz. A Monetary History of the United States, 1867–1960. Princeton: Princeton University Press, 1963.
6. Katznelson, Ira. Fear Itself: The New Deal and the Origins of Our Time. New York: Liveright, 2013.
7. Higgs, Robert. “Regime Uncertainty: Why the Great Depression Lasted So Long and Why Prosperity Resumed after the War.” Independent Review 1, no. 4 (1997): 561–590.
8. Cole, Harold L., and Lee E. Ohanian. “New Deal Policies and the Persistence of the Great Depression: A General Equilibrium Analysis.” Journal of Political Economy 112, no. 4 (2004): 779–816.