The 1970s Oil Shocks and Stagflation

How two oil price shocks in the 1970s helped produce the unusual combination of high inflation and stagnant growth.

The 1970s delivered two major oil shocks to the global economy, and together they’re closely associated with a puzzling economic condition called stagflation that challenged how economists at the time understood inflation and growth.

The first shock: 1973

In October 1973, several Arab oil-producing nations, acting through the Organization of the Petroleum Exporting Countries and in coordination with allied producers, imposed an OPEC embargo on oil exports to the United States and other countries that had supported Israel during that year’s Yom Kippur War. Oil prices roughly quadrupled within months. For economies that had become heavily dependent on cheap oil to power industry, transportation, and heating, this was a severe and sudden shock.

The second shock: 1979

A second major oil price spike followed in 1979, connected to the Iranian Revolution, which disrupted Iran’s oil production and exports at a time when global oil markets were already tight. Prices roughly doubled again over a short period. Together, these two episodes are usually discussed as bookends of a decade defined by energy-driven economic disruption.

Why an oil shock ripples through an entire economy

Oil isn't just a product bought at the pump - it's an input into transporting goods, running factories, producing plastics, and generating electricity. When oil prices quadruple suddenly, the higher cost shows up in the price of almost everything else too, from groceries to manufactured goods. A shock to one commodity can therefore push prices upward across the whole economy at once, rather than staying contained to gasoline.

What made stagflation so unusual

Stagflation refers to the simultaneous occurrence of high inflation and stagnant economic growth, usually accompanied by high unemployment. Before the 1970s, many economists believed inflation and unemployment moved in opposite directions - when one rose, the other tended to fall - based on a relationship observed in earlier decades. The 1970s broke that pattern dramatically: prices kept rising even as growth slowed and unemployment climbed, all at once.

Assuming the oil shocks alone caused stagflation

It's tempting to treat the oil shocks as the complete explanation for 1970s stagflation, but economists generally see them as one major contributor among several, not the sole cause. Monetary policy choices in the years leading up to the decade, along with shifts in productivity growth and other structural factors, are also widely cited as playing a role. Exactly how much weight to assign each factor remains a subject of genuine debate among economic historians.

The response and the lesson learned

Central banks and governments initially struggled to respond, since the conventional tools for fighting unemployment tended to worsen inflation, and vice versa. It took a deliberate, and initially painful, shift toward tighter monetary policy in the early 1980s to finally break the inflationary spiral, at the cost of a sharp recession. A more complete treatment of stagflation’s mechanics and the policy debates around it appears in this site’s dedicated stagflation lesson elsewhere in the curriculum, for readers who want to go deeper.

Key takeaways

The 1973 OPEC embargo and the 1979 Iranian Revolution each triggered sharp spikes in global oil prices.
Because oil is an input into nearly every part of the economy, these shocks pushed up prices broadly, not just at the pump.
Stagflation combines high inflation with stagnant growth and high unemployment, a pattern many economists hadn't expected to occur together.
Economists generally treat the oil shocks as one major contributor to 1970s stagflation among several, not the sole cause.
Breaking the inflationary spiral required a deliberate, painful shift toward tighter monetary policy in the early 1980s.