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Discussion Paper
The Layers of Inflation Persistence
In a recent post, we introduced the Multivariate Core Trend (MTC), a measure of inflation persistence in the core sectors of the personal consumption expenditure (PCE) price index. With data up to February 2022, we used the MCT to interpret the nature of post-pandemic price spikes, arguing that inflation dynamics were dominated by a persistent component largely common across sectors, which we estimated at around 5 percent. Indeed, over the year, inflation proved to be persistent and broad based, and core PCE inflation is likely to end 2022 near 5 percent. So, what is the MCT telling us today? ...
Discussion Paper
Will the Moderation in Wage Growth Continue?
Wage growth has moderated notably following its post-pandemic surge, but it remains strong compared to the wage growth prevailing during the low-inflation pre-COVID years. Will the moderation continue, or will it stall? And what does it say about the current state of the labor market? In this post, we use our own measure of wage growth persistence – called Trend Wage Inflation (TWIn in short) – to look at these questions. Our main finding is that, after a rapid decline from 7 percent at its peak in late 2021 to around 5 percent in early 2023, TWin has changed little in recent months, ...
Report
Micro Responses to Macro Shocks
We study estimation and inference in panel data regression models when the regressors of interest are macro shocks, which speaks to a large empirical literature that targets impulse responses via local projections. Our results hold under general dynamics and are uniformly valid over the degree of signal-to-noise of aggregate shocks. We show that the regression scores feature strong cross-sectional dependence and a known autocorrelation structure induced only by leads of the regressor. In general, including lags as controls and then clustering over the cross-section leads to simple, robust ...
Discussion Paper
Where Is Inflation Persistence Coming From?
Elevated inflation continues to be a top-of-mind preoccupation for households, businesses, and policymakers. Why has the post-pandemic inflation proved so persistent? In a Liberty Street Economics post early in 2022, we introduced a measure designed to dissect the buildup of the inflationary pressures that emerged in mid-2021 and to understand where the sources of its persistence are. This measure, that we labeled Multivariate Core Trend (MCT) inflation analyzes whether inflation is short-lived or persistent, and whether it is concentrated in particular economic sectors or broad-based.
Discussion Paper
How Large Are Inflation Revisions? The Difficulty of Monitoring Prices in Real Time
With prices quickly going up after the COVID-19 pandemic, inflation releases have rarely been as present in the public debate as in recent years. However, since inflation estimates are frequently revised, how precise are the real-time data releases? In this Liberty Street Economics post, we investigate the size and nature of revisions to inflation. We find that inflation estimates for a given month can change substantially as subsequent data vintages are released. As an example, consider March 2009. With the economy contracting amid the Global Financial Crisis, the twelve-month inflation rate ...
Report
Aggregate Output Measurements: A Common Trend Approach
We analyze a model for N different measurements of a persistent latent time series when measurement errors are mean-reverting, which implies a common trend among measurements. We study the consequences of overdifferencing, finding potentially large biases in maximum likelihood estimators of the dynamics parameters and reductions in the precision of smoothed estimates of the latent variable, especially for multiperiod objects such as quinquennial growth rates. We also develop an R2 measure of common trend observability that determines the severity of misspecification. Finally, we apply our ...
Report
A Measure of Core Wage Inflation
We recover the persistent (“core”) component of nominal wage growth over the past twenty-five years in the United States. Our approach combines worker-level data with time-series smoothing methods and can disentangle the common persistence of wage inflation from the persistence specific to some subgroup of workers, such as workers in a specific industry. We find that most of the business cycle fluctuations in wage inflation are persistent and driven by a common factor. This common persistent factor is particularly important during inflationary periods, and it explains 80 to 90 percent of ...
Discussion Paper
Inflation Persistence—An Update with December Data
This post presents an updated estimate of inflation persistence, following the release of personal consumption expenditure (PCE) price data for December 2022. The estimates are obtained by the Multivariate Core Trend (MCT), a model we introduced on Liberty Street Economics last year and covered most recently in a January post. The MCT is a dynamic factor model estimated on monthly data for the seventeen major sectors of the PCE price index. It decomposes each sector’s inflation as the sum of a common trend, a sector-specific trend, a common transitory shock, and a sector-specific transitory ...
Discussion Paper
Reintroducing the New York Fed Staff Nowcast
“Nowcasts” of GDP growth are designed to track the economy in real time by incorporating information from an array of indicators as they are released. In April 2016, the New York Fed’s Research Group launched the New York Fed Staff Nowcast, a dynamic factor model that generated estimates of current quarter GDP growth at a weekly frequency. The onset of the COVID-19 pandemic sparked widespread economic disruptions—and unprecedented fluctuations in the economic data that flow into the Staff Nowcast. This posed significant challenges to the model, leading to the suspension of publication ...
Discussion Paper
Inflation Persistence: Dissecting the News in January PCE Data
This post presents updated estimates of inflation persistence, following the release of personal consumption expenditure (PCE) price data for January 2023. The estimates are obtained by the Multivariate Core Trend (MCT), a model we introduced on Liberty Street Economics last year and covered most recently here and here. The MCT is a dynamic factor model estimated on monthly data for the seventeen major sectors of the PCE price index. It decomposes each sector’s inflation as the sum of a common trend, a sector-specific trend, a common transitory shock, and a sector-specific transitory shock. ...