Jason Furman on Overheating, Inflation, and Fiscal Policy in an Era of Low Interest Rates

Episode Summary

Executive Summary: Jason Furman argues the economy may be running somewhat hot, but the bigger risk is overreacting to temporary inflation and misreading a reopening spike as a permanent regime shift. He supports a higher inflation tolerance/range, emphasizes uncertainty and anchored expectations, and makes the case that in a low-rate world fiscal policy should be judged by real debt service rather than debt-to-GDP alone.

Main Topics: Overheating and inflation risk (Priority: 5/5): Furman avoids the term overheating but says the main risks are real wage losses and policy-induced recession, not an abstract breach of capacity. Transitory vs. persistent inflation (Priority: 5/5): He lays out arguments on both sides, stressing that inflation is already partly temporary but that demand, wages, and supply gaps could create persistence. Inflation expectations and policy uncertainty (Priority: 5/5): Furman warns against overconfidence in forecasts and places weight on anchored expectations, while acknowledging the possibility of de-anchoring. Average inflation targeting and the Fed framework (Priority: 4/5): He distinguishes temporary make-up inflation from a permanently higher inflation target and says the framework is useful but incomplete. Nominal GDP targeting and macro stabilization (Priority: 4/5): He sees overlap between NGDP-style thinking and the Fed’s framework, but still favors a dual-mandate approach that tracks unemployment and nominal variables. Fiscal policy in a low-rate world (Priority: 5/5): Furman and Beckworth discuss a flow-based sustainability framework that emphasizes real interest payments and allows more fiscal space when rates are low. Automatic stabilizers and countercyclical design (Priority: 4/5): He favors more automatic fiscal stabilizers, especially state aid and unemployment insurance triggers, to reduce timing errors and policy delay.

Key Arguments: Inflation is likely to fall from its recent peak, but the debate is about how much and how quickly, not whether it will fall at all. The largest inflation risks are falling real wages, a recession from excessive tightening, or a gradual de-anchoring of expectations. Forecasts have been too confident; professional forecasters repeatedly underestimated inflation and should reflect wider confidence intervals. A lot of current inflation can be explained by temporary reopening effects, bottlenecks, and transitory demand shifts, but some persistence may come from wages, housing, and demand still exceeding supply. Furman supports a higher inflation target or range, roughly above 2% and possibly around 3%, because low equilibrium rates justify more room and labor markets benefit from some greasing. Average inflation targeting was intended to raise expected inflation temporarily at the zero lower bound, not to justify permanently higher inflation. Debt-to-GDP is a misleading fiscal metric because debt is a stock while income is a flow; real debt service as a share of GDP is more informative for sustainability. Low global real rates and structural forces still point to a world where fiscal expansion can be absorbed more easily than in past decades. Automatic stabilizers, especially unemployment insurance and state aid tied to unemployment, are the best way to make fiscal policy faster and less error-prone.

Data Points: Core CPI forecast, February professional forecasters: 2.0% for 2021 - Survey of Professional Forecasters before inflation surged Core CPI forecast, May professional forecasters: 2.1% for 2021 - Revised forecast even after inflation had already accelerated Probability core CPI above 3%, February: less than 5% - Professional forecasters’ uncertainty estimate Probability core CPI above 3%, May: less than 15% - Professional forecasters’ uncertainty estimate Recent annualized inflation rate: 8%–9% - Furman notes the current rate is far above normal and not expected to persist Furman’s mean inflation estimate: 3.6% this year, 3.0% next year - His central forecast for inflation 10-year Treasury yield: around 1.5% - Discussed as having flattened in recent weeks Long-run inflation expectations, Philadelphia Fed SPF (CPI): 2.4% five-year; 2.3% ten-year - Survey expectations cited to compare with bond market pricing Long-run inflation expectations, Philadelphia Fed SPF (PCE): 2.2% five-year; 2.1% ten-year - Survey expectations cited to compare with bond market pricing Present value of infinite-horizon GDP: $3.8 quadrillion - Social Security Trustees benchmark used in the Furman-Summers paper U.S. federal debt held by the public: $21.2 trillion - As of November 19, 2020, in the paper example Debt as share of infinite-horizon GDP: 0.5% - Illustrates the paper’s stock-versus-flow argument Historical real interest rate level: about 4% to around 0% - Approximate fall across the G7 over 30 years Preferred fiscal sustainability threshold: real interest payments below about 2% of GDP - Rule of thumb from the paper Possible debt-to-GDP sustainable range: 125%–150% of GDP - Furman’s stated tolerance if low-rate assumptions hold Rule of thumb on debt effects on rates: 1 percentage point more debt/GDP ≈ 1.5 basis points higher rates in the U.S. - His estimate of the debt-interest sensitivity 10-year yields 10 years out: roughly 2.9% - Furman cites market expectations as higher than before the pandemic

Pivotal Quotes: "The more I think about inflation, the less sure I get of anything other than we should have a wide confidence interval and that policy decisions should explicitly recognize our uncertainty." — Jason Furman: Explaining his view that inflation forecasts are highly uncertain "I much prefer the sort of heating the economy than putting it full tilt, incredibly hot economy." — Jason Furman: Describing his gradualist approach to avoiding recession risk "Our biggest argument is that debt to GDP is a misleading metric because debt is a stock. It’s what you have at a point in time. Income is a flow." — Jason Furman: Summarizing the core thesis of the Furman-Summers fiscal paper

Implications: Listeners should expect a policy world where modestly higher inflation tolerance, careful labor-market monitoring, and stronger automatic stabilizers matter more than rigid debt and inflation rules. Furman’s framework supports gradualism, not panic.