Rentier state theory

A rentier state receives a large share of its revenue from rents paid by foreigners, such as royalties on oil exports, rather than from taxing its own population. Because the state does not depend on citizens' taxes, the argument goes, it is less accountable to them; because it can distribute rents as jobs, subsidies and services, it can buy loyalty. The slogan 'no taxation without representation' is reversed: no taxation, so no representation.

Hossein Mahdavy coined the term in 1970 in a study of Pahlavi Iran, defining rentier states as countries that receive substantial external rents on a regular basis. Hazem Beblawi and Giacomo Luciani (1987) refined it: in a rentier state, rents are external, they accrue directly to the government, and only a small part of the population is involved in generating them, while the rest is involved in their distribution. Terry Lynn Karl's Paradox of Plenty (1997) showed how oil booms shaped the institutions of petro-states such as Venezuela, Nigeria and Iran. Michael Ross (2001) separated a rentier effect (low taxes and patronage), a repression effect (oil money funds security forces) and a modernisation effect (oil growth without the social changes that usually accompany development).

• The Gulf monarchies, where hydrocarbon revenue funds public employment and services without a personal income tax on citizens.
• Venezuela, where oil rents underpinned a long-lived two-party democracy and later the Chávez and Maduro governments, and whose oil-dependent economy contracted sharply after the 2014 fall in oil prices.
• Iran before and after 1979, the case from which the theory began.
• Counter-cases: Norway, whose oil wealth arrived after democratic institutions were established and is saved in a sovereign wealth fund, and Alaska, which pays a dividend to residents.

Michael Herb (2005) argued that once the effect of rents on economic development is taken into account, rentierism has no consistent negative effect on democracy. Others point out that rentier states can and do tax, that rents are a resource for opposition and civil-war actors as well as for rulers, and that the theory explains the stability of some regimes but not the overthrow of others, such as the Shah of Iran in 1979 or Gaddafi in 2011. The theory also risks a deterministic reading in which resources fix political destiny.

Rentier theory remains the main framework for explaining the political economy of oil states and a core mechanism in the political resource curse. Its causal claims are debated, but its description of how rent-based fiscal systems work in the Gulf is widely accepted.