The Rise of Monopolies and Antitrust in the United States

Key Insight

Inclusive institutions in the United States, rooted in colonial struggles and strengthened by the Constitution's system of checks and balances, continued to evolve, notably with all white males gaining voting rights by the mid-19th century and inclusive economic measures like the 1862 Homestead Act. However, the post-Civil War economic boom, particularly in the North, led to the emergence of 'Robber Barons' like Cornelius Vanderbilt, John D. Rockefeller (Standard Oil Company), and J.P. Morgan (U.S. Steel Company). These figures amassed vast fortunes by consolidating monopolies, often controlling over 70% of their market sectors by the 1890s, leading to increased wealth inequality and a shift from competitive to monopolistic markets.

The pluralistic U.S. political system, however, empowered broad segments of society to resist these encroachments. Victims of monopolistic practices organized, forming the Populist movement, which emerged from the agrarian crisis of the late 1860s. Groups like the Grangers mobilized farmers against unfair business practices, gaining control of eleven midwestern state legislatures by 1874 and culminating in the People's Party in 1892. This grass-roots opposition translated into political action, leading to the Interstate Commerce Act of 1887, which created the Interstate Commerce Commission, and the Sherman Antitrust Act of 1890, forming the basis for attacks on the powerful trusts.

Major antitrust actions intensified under Presidents Theodore Roosevelt (1901-1909), William Taft (1909-1913), and Woodrow Wilson (1913-1921). Roosevelt, a key Progressive figure, used the Sherman Act to break up powerful entities like the Northern Securities Company in 1902 and strengthened the Interstate Commerce Commission. Taft further prosecuted trusts, notably dissolving Standard Oil in 1911 and introducing the federal income tax via the Sixteenth Amendment in 1913. Wilson enacted the Clayton Antitrust Act in 1914 and established the Federal Trade Commission and the Federal Reserve Board in 1913 to regulate financial monopolies. A free media, epitomized by 'muckrakers' like Ida Tarbell and Louis Brandeis, played a crucial role in exposing corporate excesses and galvanizing public opinion, demonstrating how inclusive political institutions support inclusive markets and resist deviations through a virtuous circle.