The Great Moderation - Good Luck,Good Policy,or Less Oil Dependence?

Sep 21, 2026

Uploaded by Himbo

Explores why industrialized economies since the 1980s experienced less pronounced fluctuations in real GDP and inflation, commonly termed the "Great Moderation." Discusses three explanations: good luck from benign shocks, improved monetary policy through credible inflation targeting, and structural change reflected in reduced oil dependence and more efficient oil use. Presents evidence from research quantifying contributions to moderation in inflation and GDP, and reviews the oil channel linking oil-price movements to output and prices.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages5

Reading Time13 min

AccessFree to download

The Great Moderation

Competing explanations: good luck, monetary policy, and structural change

The oil channel

Evidence from U.S. data and oil-price effects

# The Great Moderation:Good Luck,Good Policy,or Less Oil Dependence? Andrea Pescatori Three explanations have been suggested for the moderation in real GDP and inflation that has occurred in industrializedcountries since the 1980s:good luck,better monetary policy,and structural changes in the econony.Recent researchfinds that better monetary policy explains most of the moderation in inflation,and good luck and the lessintensive useof oil(a stuctural change)have played a major role in the moderation of GDP. Sometime in the early 1980s,real GDP and inflation inindustrialized countrics began to fuctuate less widcly thanin the past.Economists have been debating the causes ofthis dramatic change.commonly referred to as the “GreatModeration,"ever since (see figures l and 2).Broadly spcak-ing,thrce explanations have bccn suggestcd:good luck,bctter monctary policy,and structural changcs in theeconomy.Economists of all stripes are interested in which isresponsible,but monetary policymakers,in particular,needto understand the relative importance of cach,as they maybe in a position to kcep up the good work. Good luck refers to the possibility that the remarkablybenign series of economic shocks that have hit the economyin rcccnt years has been thc result of nothing other thanchance.Some cconomists conjccture that stable oil priceshave helped to produce these calm waters,bccause so muchof industrialized countries'output requires oil as an inputto production,and most of these countries import their oil.While today's rising oil prices may sccm to spell he end ofthcse good times,the percentage change in rcent oil priccshas been much less abrupt than in the 1970s(see fgure 3). If good luck explains the moderation in GDP and infation,though.there's no reason to expcct the moderation to last.But many economists argue that better macrocconomic poli-cics arc responsiblc,particularly monetary policy.If bcttermonetary policy has helped to moderate swings in GDPand inflation,it is important to make sure that this goodpolicy continues. Inflation targeting is sccn by some as the bcst way to dothis.A credible target on low inflation helps central banksto stabilize not only inflation but also infation expectations,which by theselves can be a source of acroeconomicinstability,as they can affect interest rates and the realcconomy.Over the past few decades,most of the world'smajor central banks have sought to keep infation low,somegoing so far as to adopt explicit inflation targeting regimes,and proponents of inflation targcting sce the Great Modera-tion as evidcnce of these policies'cffectiveness. Other cconomists arguc that the overall cconomy has under-gone some sort of structural change and is now intrinsicallymore resilient to economic shocks.Alook at the effect of oilprices on the economy provides an example of this resil-ience.Since 1983,incrcases in oil prices have had a muchsmaller cffect on GDP-in the United States as well as mostindustrialized countries.Oil conservation efforts after theoil-price shocks of the 1970s are likely responsible for thisreduced impact,for we now use oilmore efficiently.Theratio of oil to GDP,which shows how much oil is needed toproduce a given dollar of GDP,has fallen about 40 pcrcentsince the 1965-1983 period. My recent research with Antón Nakov suggests that none ofthese explanations by itsclf accounts for all of the modera-tion in GDP and inflation variability,but cach contributessomething.We have quantificd the impact of these causeson the moderation,and we find that while better monetarypolicy explains most of the moderation in infation,goodluck and the less-intensive use of oil(a structural change)have played a major role in the moderation of GDP. The Oil Channel In the past six years,oil prices have increased almost S80 abarrel(from an average of $20 in the first quarter of 2002to $98 in the first quarter of 2008).Unlike the 1970s,thisdramatic price rise has not bcen associated with an incrcase

FAQs

What are the three main explanations for the Great Moderation?

The text presents three explanations: good luck from benign economic shocks, better monetary policy, and structural changes in the economy.

How does better monetary policy relate to inflation stability?

It argues that credible low-inflation targets help stabilize not only inflation but also inflation expectations, reducing macroeconomic instability.

What is the role of oil dependence in moderating GDP?

It claims less-intensive use of oil and improved efficiency reduced how strongly oil-price increases affect GDP, contributing to moderation.

Sep 21, 2026

Uploaded by Himbo