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Journal Article
Monetary Policy since the Onset of the COVID-19 Pandemic: A Path-Dependent Interpretation
Some argue that the Fed underreacted to rising inflation in 2021 after the US economy started to recover from the COVID-19 crisis. By using data from the Summary of Economic Projections (SEP), we surmise that the FOMC expected to keep the federal funds rate near zero by the end of 2021, but at the same time, the committee also expected to make the policy rate catch up to inflation over the next two years. We then argue that the Fed chose this gradual approach in response to the negative demand shock that pushed the policy rate to its effective zero lower bound. Economic literature on optimal ...
Working Paper
The Informational Effect of Monetary Policy and the Case for Policy Commitment
I study how the informational effect of monetary policy changes the optimal conduct of monetary policy. In my model, the private sector extracts information about unobserved shocks from the central bank's interest rate decisions. The central bank optimally changes the informational effect of the interest rate by committing to a state-contingent policy rule, in which case the Phillips curve becomes endogenous to the central bank's optimization problem. In a dynamic model, the optimal policy rule overshoots the natural-rate shock and gradually responds to the cost-push shock, which makes the ...
Working Paper
Average Inflation Targeting: Time Inconsistency And Intentional Ambiguity
We study the implications of the Fed's new policy framework of average inflation targeting (AIT) and its ambiguous communication. We show that AIT improves the trade-off between inflation and real activity by tilting the Phillips curve in a favorable way. To fully utilize this feature and maximize social welfare, the central bank has the incentive to deviate from AIT and implement inflation targeting ex post. Next, we rationalize the central bank's ambiguous communication about the horizon over which it averages inflation. Ambiguous communication, together with uncertainty about economic ...
Journal Article
The Information Effect of Monetary Policy: Self-Defeating or Optimal?
As the Federal Reserve has become more transparent about its decisions on the federal funds target rate, the general public has begun to regard the rate as not only a benchmark interest rate, but also as a signal about the state of the economy. However, the specific information considered by the public to be revealed is not clearly understood. We investigate this question and find that the information revealed by monetary policy decisions is regarding future output growth, not inflation, and that such an information effect is theoretically optimal and does not make interest-rate policies ...
Working Paper
The Informational Effect of Monetary Policy and the Case for Policy Commitment
I explore how asymmetric information between the central bank and the private sector changes the optimal conduct of monetary policy. I build a New Keynesian model in which private agents have imperfect information about underlying shocks, while the central bank has perfect information. In this environment, private agents extract information about the underlying shocks from the central bank?s interest-rate decisions. This informational effect weakens the direct effect of monetary policy: When the central bank adjusts the interest rate to offset the effects of underlying shocks, the interest ...
Working Paper
Average Inflation Targeting: Time Inconsistency And Intentional Ambiguity
We study the implications of the Fed's new policy framework of average inflation targeting (AIT) and its ambiguous communication. The central bank has the incentive to deviate from its announced AIT and implement inflation targeting ex post to maximize social welfare. We show two motives for ambiguous communication about the horizon over which the central bank averages inflation as a result of time inconsistency. First, it is optimal for the central bank to announce different horizons depending on the state of the economy. Second, ambiguous communication helps the central bank gain ...
Journal Article
Average Inflation Targeting in a Low-Rate Environment
One significant change in the US economy in the last 20 years is the trend decline in real interest rates that pushes the policy rate near the effective lower bound (ELB) and puts downward pressure on inflation. This environment leaves conventional monetary policy tools less effective in accommodating adverse shocks. To better achieve the Federal Reserve’s dual mandate at the ELB, the FOMC adopted a new framework called average inflation targeting (AIT). In this Commentary, I demonstrate that AIT is a better policy in a low-rate environment because of its ability to anchor inflation ...
Working Paper
A Comment on 'Wealth Inequality and Endogenous Growth' by Byoungchan Lee
How does wealth inequality affect economic growth? Byoungchan Lee answers this question by developing a heterogeneous-agent model and augmenting it with endogenous firm innovation. The novel channel is that rising wealth concentration reduces aggregate demand, which gives firms a disincentive to spend on R&D and therefore leads to slower productivity growth. In this discussion, we first explain the difference in calibration strategy between Lee’s approach and the common approach in the literature, and then discuss its quantitative implications for the effect of rising inequality on ...
Working Paper
Firm Dynamics and SOE Transformation During China's Economic Reform
We study China’s state-owned enterprises (SOE) reform with a focus on the corporatization of SOEs. We first empirically document that small SOEs are more likely to exit or become privatized, whereas big SOEs are more likely to be corporatized while remaining under state ownership. We then build a heterogeneous-firm model featuring financial frictions, endogenous entry and exit, and optimal firm-type choices. Our calibrated model suggests that in the long run, the SOE reform increases the aggregate output by facilitating resource reallocation to the private sector. Along the transition, the ...
Journal Article
Financial Markets’ Perceptions of the FOMC’s Data-Dependent Monetary Policy
Over the past ten years, the Federal Open Market Committee (FOMC) has repeatedly emphasized that future policy is data dependent. In this Economic Commentary, we investigate how financial markets expected future interest rates to change with the release of new data on inflation and labor market conditions. We find that the surprises in economic indicators have a stronger effect on the 2-year Treasury yield than on the expected federal funds rate to be set in the next FOMC meeting. This implies that markets understand that under the data-dependent approach, policy decisions do not heavily rely ...