Gaetano Mosca

Life

Gaetano Mosca was born on April 1, 1858, in Palermo, Sicily. He studied law at the University of Palermo, graduating in 1881. Mosca began his academic career as a professor of constitutional law and political science, teaching at the University of Turin from 1896 to 1908, then at the University of Rome from 1908 until his retirement in 1933. In addition to his academic work, he served as a deputy in the Italian Chamber of Deputies from 1908 to 1919 and as Undersecretary of State for the Colonies from 1914 to 1916. Mosca died on November 8, 1941, in Rome.

People Who Influenced Their Thought

• Henri de Saint-Simon (1760-1825): The French social theorist's ideas about the organization of society and the role of elites in industrial development influenced Mosca's thinking about ruling classes.
• Auguste Comte (1798-1857): Comte's positivist approach to social science and his vision of sociology as a scientific discipline shaped Mosca's methodology in studying political systems.
• Karl Marx (1818-1883): Though Mosca rejected Marx's economic determinism and class struggle conclusions, his work was partly a response to Marxist theories of social organization and historical development.

Main Ideas and Publications

Mosca is best known as one of the founders of elite theory, which argues that all societies are governed by organized minorities. His core contribution was the systematic formulation of the concept of a political class (later termed "ruling class").

His seminal work, Sulla Teorica dei Governi e sul Governo Parlamentare (1884, On the Theory of Governments and Parliamentary Government), first articulated his critique of parliamentary systems and his observations about ruling minorities.

His masterpiece, Elementi di Scienza Politica (1896, expanded 1923, The Ruling Class), presents his complete political theory. The book's central thesis is that in every society, two classes exist: the ruling class (a minority that exercises political power) and the ruled class (the majority). Mosca argued that the ruling class maintains its position through organization, since a minority can dominate a majority only if it is cohesive and structured, while the majority remains disorganized. He introduced the concept of "political formula"—the legal and moral principles (such as divine right or popular sovereignty) that ruling classes use to justify their power.

Mosca distinguished between autocratic and liberal systems based on how open the ruling class is to new members. Liberal systems, he argued, allow circulation of elites, preventing stagnation and tyranny. Unlike his contemporary Vilfredo Pareto, Mosca did not believe elite rule was inevitable in a normative sense—he saw it as an empirical fact but believed democratic institutions could make elites more responsive.

Other important works include:

• Le Costituzioni Moderne (1887, Modern Constitutions)
• Storia delle Dottrine Politiche (1933, History of Political Doctrines)

Controversies around His Main Work or Thought

Mosca's elite theory generated significant debate among political theorists and sociologists. Critics charged that his concept of the ruling class was too broad and difficult to operationalize empirically. Marxist scholars, in particular, argued that Mosca failed to adequately account for economic power and class relations, treating political power as autonomous from economic structures.

Some critics contended that Mosca's theory was inherently conservative, potentially justifying elite rule by presenting it as an inevitable feature of social organization. His later embrace of parliamentary democracy as a mechanism for elite circulation was seen by some as insufficiently democratic, since it still accepted the necessity of minority rule.

His relationship with fascism in Italy has also been debated. Though Mosca was a liberal conservative who criticized both Marxism and fascism, his emphasis on elite rule and strong government was sometimes appropriated by anti-democratic thinkers. Mosca himself remained critical of Mussolini's regime, though he continued working in Italian universities throughout the fascist period.

Key People Influenced by Their Thought

• Vilfredo Pareto (1848-1923): The Italian economist and sociologist developed his own theory of elite circulation, building on and diverging from Mosca's concepts. Pareto's "circulation of elites" became a cornerstone of classical elite theory.
• Robert Michels (1876-1936): The German-Italian sociologist applied Mosca's insights to political parties, formulating the "iron law of oligarchy," which argued that all organizations inevitably become oligarchic.
• James Burnham (1905-1987): The American political theorist drew on Mosca and Pareto in developing his theory of the "managerial revolution" and the rise of a new ruling class of technical experts.
• C. Wright Mills (1916-1962): The American sociologist's concept of the "power elite" in mid-century America was influenced by Mosca's analysis of cohesive ruling minorities.
• Giovanni Sartori (1924-2017): The Italian political scientist engaged with Mosca's work in his theories of democratic representation and party systems.
• Suzanne Keller (1927-2010): The American sociologist developed Mosca's ideas further in her work on strategic elites in modern societies.

Legacy

Gaetano Mosca fundamentally transformed political science by demonstrating that elite rule is an empirical constant across all societies, while simultaneously providing theoretical tools for understanding how democratic institutions can make elites responsive through controlled circulation and pluralistic competition.