Flatter Phillips Curve Research Articles

Real and nominal effects of monetary shocks under time-varying disagreement

This paper investigates the heterogeneity of monetary policy transmission under time-varying disagreement regimes using a threshold VAR. Empirically, I establish that during times of high disagreement, prices respond more sluggishly in response to monetary shocks. These stickier prices cause a flatter Phillips curve, leading to the empirical result that monetary policy has stronger real (output) effects in high disagreement periods. I develop a tractable theoretical model that show rationally inattentive price-setters produce this result. The model also links disagreement and uncertainty – two fundamentally different concepts, and bridges the results of this paper to the literature on state-dependent monetary transmission. The main result highlights a role for improved central bank communications that reduce disagreement among economic agents, which lessens output falls when implementing disinflationary monetary policies.

Alternative Strategies: How Do They Work? How Might They Help?

Several structural developments in the U.S. economy—including lower neutral interest rates and a flatter Phillips curve—have challenged the ability of the current monetary policy framework to deliver on the Federal Open Market Committee’s (FOMC) dual-mandate goals. This paper explores whether makeup strategies, in which policymakers seek to stabilize average inflation around the inflation target over some horizon, could strengthen the FOMC’s ability to fulfill its dual mandate. The quantitative analysis discussed here suggests that credible makeup strategies may provide some moderate stabilization gains. The practical implementation of these strategies, however, faces a number of challenges that would have to be surmounted for the full benefit of these strategies to be realized.

Determinants of fiscal multipliers revisited

We generalize a simple New Keynesian model and show that a flattening of the Phillips curve reduces the size of fiscal multipliers at the zero lower bound (ZLB) on the nominal interest rate. The factors behind the flatting are consistent with micro- and macroeconomic empirical evidence: it is a result of, not a higher level of price rigidity, but an increase in the degree of strategic complementarity in price-setting – invoked by the assumption of a specific instead of an economy-wide labour market, and decreasing instead of constant-returns-to-scale. In normal times, the efficacy of fiscal policy and resulting multipliers tends to be small because negative wealth effects crowd out consumption, and because monetary policy endogenously reacts to fiscally-driven increases in inflation and output by raising rates, offsetting part of the stimulus. In times of a binding ZLB and a fixed nominal rate, an increase in (expected) inflation instead lowers the real rate, leading to larger fiscal multipliers. Conditional on being in a ZLB-environment, under a flatter Phillips curve, increases in expected inflation are lower, so that fiscal multipliers at the ZLB tend to be lower. Finally, we also discuss the role of solution methods in determining the size of fiscal multipliers.

A note on the stability of the Swedish Phillips curve

We use Bayesian techniques to estimate bivariate VAR models for Swedish unemployment rate and inflation. Employing quarterly data from 1995Q1 to 2018Q3 and new tools for model selection, we compare models with time-varying parameters and/or stochastic volatility to specifications with constant parameters and/or covariance matrix. The evidence in favour of a stable dynamic relationship between the unemployment rate and inflation is mixed. Model selection based on marginal likelihood calculations indicates that the relation is time varying, whereas the use of the deviance information criterion suggests that it is constant over time; we do, however, note consistent evidence in favour of stochastic volatility. An out-of-sample forecast exercise is also conducted, but similarly provides mixed evidence regarding which model to favour. Importantly though, even if time-varying parameters are allowed for, our results do not suggest that the Phillips curve has been flatter in more recent years. This finding thereby questions the explanation that a flatter Phillips curve is the cause of the low inflation that Sweden has experienced in recent year.

The Role of Inflation Target Adjustment in Stabilization Policy

How and under what circumstances can adjusting the inflation target serve as a stabilization-policy tool and contribute to welfare improvement? We answer these questions quantitatively with a standard New Keynesian model that includes cost-push type shocks which create a trade-o↵ between inflation and output gap stabilization. We show that this trade-o↵ leads to a non-trivial welfare cost under a standard Taylor rule, even with optimized policy coefficients. We then propose an additional policy tool of an inflation target rule and find that the optimal target needs to be adjusted in a persistent manner and in the opposite direction to the realization of a cost-push shock. The inflation target rule, combined with a Taylor rule, significantly reduces fluctuations in inflation originating from the cost-push shocks and mitigates the policy trade-o↵, resulting in a similar level of welfare to that associated with the Ramsey optimal policy. The welfare implications of the inflation target rule are more pronounced under a flatter Phillips curve.

Real and Nominal Effects of Monetary Shocks Under Time-Varying Disagreement

This paper investigates the heterogeneity of monetary policy transmission under time-varying disagreement regimes using a threshold VAR. Empirically, I establish that during times of high disagreement, prices respond more sluggishly in response to monetary shocks. These stickier prices cause a flatter Phillips curve, leading to the empirical result that monetary policy has stronger real (output) effects in high disagreement periods. I develop a tractable theoretical model that show rationally inattentive price-setters produce this result. The model also links disagreement and uncertainty – two fundamentally different concepts, and bridges the results of this paper to the literature on state-dependent monetary transmission. The main result highlights a role for improved central bank communications that reduce disagreement among economic agents, which lessens output falls when implementing disinflationary monetary policies.

Economic migration and business cycles in a small open economy with matching frictions

With the free movement of labour in Europe, economic migration has become an important determinant of labour supply. Cyclical migration exceeds one percent of the population in many countries and affects (un)employment and wage setting. The main contribution of this paper is that it models migration as an endogenous decision in a search-and-matching framework, where labour market institutions play an important role. It shows that, contrary to typical beliefs, migration can amplify business cycles. After a positive shock to the economy, immigration increases the labour force and initially unemployment. The latter reduces a worker's outside option in wage negotiations, resulting in a lower wage increase than when there is no migration. With cheaper labour firms post more job vacancies, which increases the probability that unemployed workers find jobs and attracts new workers to immigrate. Attenuated response of wages and the stronger response of employment to shocks result in a flatter Phillips curve.

Good Policies or Good Luck? New Insights on Globalization and the International Monetary Policy Transmission Mechanism

The open-economy dimension is central to the discussion of the trade-offs that monetary policy faces in an increasingly integrated world. I investigate the monetary policy transmission mechanism in a two-country workhorse New Keynesian model where policy is set according to Taylor (in: Carnegie-Rochester conference series on public policy, vol 39, pp. 195–214, 1993) rules. I find that a common monetary policy isolates the effects of trade linkages on the cross-country dispersion alone, and that the establishment of a currency union as a means of deepening policy integration may lead to indeterminacy. I argue that the common (coordinated) monetary policy equilibrium is the relevant benchmark for policy analysis showing that open economies tend to experience lower macro volatility, a flatter Phillips curve, and more accentuated trade-offs between inflation and slack. Moreover, the trade elasticity often magnifies the effects of trade integration (globalization) beyond what conventional measures of trade openness would imply. I also discuss how other features such as the strength of a common anti-inflation bias in policymaking, technological diffusion across countries, and the sensitivity of labor supply to real wages influence the quantitative effects of policy and openness in this context. Finally, I conclude that these theoretical predictions are largely consistent with the stylized facts of the Great Moderation.

Good Policies or Good Luck? New Insights on Globalization and the International Monetary Policy Transmission Mechanism

The open-economy dimension is central to the discussion of the trade-offs that monetary policy faces in an increasingly integrated world. I investigate the monetary policy transmission mechanism in a two-country workhorse New Keynesian model where policy is set according to Taylor (1993) rules. I find that a common monetary policy isolates the effects of trade openness on the cross-country dispersion, and that the establishment of a currency union as a means of deepening economic integration may lead to indeterminacy. I argue that the common (coordinated) monetary policy equilibrium is the relevant benchmark for policy analysis showing that in that case open economies tend to experience lower macro volatility, a flatter Phillips curve, and more accentuated trade-offs between inflation and slack. Moreover, I show that the trade elasticity often magnifies the effects of trade integration (globalization) beyond what conventional measures of trade openness would imply. I also discuss how other features such as the impact of a stronger anti-inflation bias, technological diffusion across countries, and the sensitivity of labor supply to real wages influence the quantitative effects of policy and openness in this context. Finally, I conclude that the theoretical predictions of the workhorse open-economy New Keynesian model are largely consistent with the stylized facts of the globalization era started in the 1960s and the Great Moderation period that followed.

The Role of the Inflation Target Adjustment in Stabilization Policy

How and under what circumstances can adjusting the inflation target serve as a stabilization-policy tool and contribute to welfare improvement? We answer these questions quantitatively with a standard New Keynesian model that includes cost-push type shocks which create a trade-off between inflation and output gap stabilization. We show that this trade-off leads to a non-trivial welfare cost under a standard Taylor rule, even with optimized policy coefficients. We then propose an additional policy tool of an inflation target rule and find that the optimal target needs to be adjusted in a persistent manner and in the opposite direction to the realization of a cost-push shock. The inflation target rule, combined with a Taylor rule, significantly reduces fluctuations in inflation originating from the cost-push shocks and mitigates the policy trade-off, resulting in a similar level of welfare to that associated with the Ramsey optimal policy. The welfare implications of the inflation target rule are more pronounced under a flatter Phillips curve.

Good Policies or Good Luck? New Insights on Globalization and the International Monetary Policy Transmission Mechanism

The open-economy dimension is central to the discussion of the trade-offs that monetary policy faces in an increasingly integrated world. I investigate the monetary policy transmission mechanism in a two-country workhorse New Keynesian model where policy is set according to Taylor (in: Carnegie-Rochester conference series on public policy, vol 39, pp. 195–214, 1993) rules. I find that a common monetary policy isolates the effects of trade linkages on the cross-country dispersion alone, and that the establishment of a currency union as a means of deepening policy integration may lead to indeterminacy. I argue that the common (coordinated) monetary policy equilibrium is the relevant benchmark for policy analysis showing that open economies tend to experience lower macro volatility, a flatter Phillips curve, and more accentuated trade-offs between inflation and slack. Moreover, the trade elasticity often magnifies the effects of trade integration (globalization) beyond what conventional measures of trade openness would imply. I also discuss how other features such as the strength of a common anti-inflation bias in policymaking, technological diffusion across countries, and the sensitivity of labor supply to real wages influence the quantitative effects of policy and openness in this context. Finally, I conclude that these theoretical predictions are largely consistent with the stylized facts of the Great Moderation.

Do professional forecasters behave as if they believed in the New Keynesian Phillips Curve for the euro area?

This paper finds that participants in the European Central Bank’s Survey of Professional Forecasters have submitted forecasts that are consistent with a (mostly forward-looking) empirical version of the New Keynesian Phillips Curve for the euro area. The estimation technique takes advantage of the panel nature of the Survey of Professional Forecasters’ dataset to exploit both its time series and cross-section dimensions, and to control for unobservable individual heterogeneity across forecasters. The estimation results suggest that euro-area inflation forecasts have reacted less to unemployment forecasts after the start of the financial crisis but another cost measure (energy inflation) remains significant. This finding is consistent with a flatter Phillips Curve in the euro area after 2007. However, the reasons suggested by the International Monetary Fund for this finding, namely a better anchoring of inflation expectations and increases in structural unemployment do not seem to find support in the survey data. Instead, the expectations for compensation per employee submitted by professional forecasters are consistent with the existence of downward real-wage rigidities in euro-area labour markets.

Comment

Comment

Reflections on Monetary Policy in the Open Economy

Aperennial topic of discussion among scholars and policymakers is how best to think about a benchmark for macroeconomics as it applies to monetary policy. Should the benchmark for policy analysis be the open economy with international interest rate linkages and flexible exchange rates (after all, major economies are in fact open with flexible exchange rates), or should it be the closed economy in which such linkages and exchange rate adjustments are assumed away? Of course, few if any policy makers would seek to guide policy by ignoring capital flows and exchange rates, but in many cases it appears as though the starting point for analysis is the closed‐economy macro model, these days a variant of the dynamic new Keynesian model. Those who start from a closed‐economy framework often have questions about how “openness” influences the analysis. How does the neutral real interest depend on “global” developments? Is the Phillips curve trade‐off between inflation and domestic output better or worse in the open versus the closed economy? Is “potential GDP” a function of global developments, or only of domestic resources available and domestic productivity? Perhaps most important, how—if at all—does openness influence the optimalmonetary policy rule? Is a Taylor rule the rightmonetary policy for an open economy? In 2002 Jordi Gali, Mark Gertler, and I published a paper in the Journal of Monetary Economics that developed a benchmark (at least in ourway of thinking) dynamic two‐country optimizing macro model of optimal monetary policies in the open economy. Our focus in that paper was deriving optimal policy rules in the two‐country model and assessing the gains from international monetary policy cooperation. In that paper, we emphasized the following implications of the model:

Introduction

Introduction