In Focus by The Hindu Nobel Economics Prize 2026: How can Hall and Woodford’s ideas help tackle today’s economic challenges?
Oct 21, 2026
Partha Chatterjee, Dean of Academics and Professor of Economics at Shiv Nadar University, explores the Nobel-winning work of Robert Hall and Michael Woodford. The conversation traces macroeconomics from the Great Depression to stagflation, examines permanent income and expectations, and considers how households, businesses and policymakers respond to uncertainty. It also explores crisis modeling, heterogeneous agents, inflation targeting and the importance of credible policy.
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The 1970s Made Expectations Economically Central
- The 1970s exposed weaknesses in historical macroeconomic models through stagflation and the Lucas critique.
- Expectations change behaviour, so relationships estimated under one policy regime may fail under another.
Hall Tested Consumption Against Lifetime Income
- Robert Hall made permanent-income theory testable by using an Euler equation rather than directly estimating consumption.
- His evidence suggested consumption follows a smoother, near-random-walk path than current income alone predicts.
Three People Spend The Same Bonus Differently
- A one-time bonus, temporary contract payment, and permanent raise produce different spending responses despite identical amounts.
- The example shows why consumers smooth consumption according to expected lifetime income.