Hall and Woodford win Nobel for stabilisation theory
The Royal Swedish Academy of Sciences awarded the 2026 economics Nobel to Robert E. Hall and Michael Woodford on October 12. An October 19 European Central Bank (ECB) blog explains their foundations for macroeconomic stabilisation.
From consumption to policy commitments
Hall's 1978 and 1982 research tested consumers' optimality conditions directly rather than estimating consumption functions requiring unobservable lifetime-income expectations.
Under his assumptions, current consumption alone predicts future consumption; other available information adds no explanatory power.
This random-walk property interprets forecast errors as unpredictable news and supplies a testable restriction.
Woodford's 2003 book integrated microeconomic foundations and sticky prices into the three-equation New Keynesian model.
Its policy prescription is to close deviations from trend and announce commitment to a target.
Such commitments shape public expectations in ways that support stabilisation, the blog explains.
Why flexible prices fell short
John Maynard Keynes's response to the Great Depression put deficient demand at the centre of short-run fluctuations.
The oil crises of the 1970s exposed weaknesses in aggregate relationships lacking foundations in individual behaviour.
Subsequent microfounded models assumed perfectly flexible prices, leaving no role for demand-driven business cycles.
New Keynesian models introduced sticky prices, allowing demand and supply to diverge temporarily and giving monetary and fiscal stabilisation a theoretical basis.
Data cannot replace theory
The blog argues that more data cannot substitute for macroeconomic theory.
It credits the microfounded, sticky-price framework with helping policymakers respond successfully to the 2008 financial crisis.
Its central message is that interpreting economic data requires a model of individual behaviour and aggregate outcomes.