Oligarchy (from the Greek oligarkhía, "rule by the few") describes any political arrangement in which effective decision-making authority rests with a small, identifiable group rather than with the broader citizenry or a single ruler. Aristotle, in Politics, treated oligarchy as the corrupt counterpart of aristocracy: where aristocracy claimed to be rule by the virtuous few in the common interest, oligarchy was rule by the wealthy few in their own interest.
Oligarchies can take several forms:
- Plutocracy — power tied to wealth.
- Aristocracy / nobility — power tied to hereditary rank.
- Stratocracy or military junta — power held by senior officers.
- Theocratic oligarchy — power held by a clerical council.
- Technocratic or party oligarchy — power held by a small bureau or politburo.
The concept is also used analytically, not just descriptively. Robert Michels' "iron law of oligarchy" (1911) argued that all large organizations, including democratic parties and trade unions, inevitably develop a ruling minority because complex coordination requires delegation and professional leadership. Later scholars such as Jeffrey Winters (Oligarchy, 2011) refined the term to focus specifically on actors who command concentrated material resources sufficient to defend their wealth politically, distinguishing "civil oligarchies" (like the contemporary United States, in his framing) from "ruling oligarchies" of earlier eras.
In contemporary usage, the label is frequently applied to post-Soviet states where a small number of business magnates acquired controlling stakes in privatized industries during the 1990s and translated that wealth into political influence — most prominently in Russia and Ukraine. It is also invoked in debates about campaign finance, media concentration, and elite capture in nominally democratic systems.
Because the term carries strong negative connotations, delegates and researchers should distinguish between its classical typological use (a neutral regime category) and its polemical use (a critique of elite influence within another regime type).
Example
Following the 1990s privatization of Russian state assets, a group of businessmen including Boris Berezovsky and Mikhail Khodorkovsky became widely known as "the oligarchs" for their outsized influence over the Yeltsin government.
Frequently asked questions
Aristotle distinguished them by purpose: aristocracy is rule by a virtuous few claiming to serve the common good, while oligarchy is rule by a few — often the wealthy — serving their own interests. In modern usage the line is blurred, but 'aristocracy' typically implies hereditary rank, whereas 'oligarchy' emphasizes concentration of power regardless of source.
Keep learning