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Digital
Real-Time Forecasting with a Mixed-Frequency VAR
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Year: 2013 Publisher: Cambridge, Mass. National Bureau of Economic Research

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Abstract

This paper develops a vector autoregression (VAR) for time series which are observed at mixed frequencies - quarterly and monthly. The model is cast in state-space form and estimated with Bayesian methods under a Minnesota-style prior. We show how to evaluate the marginal data density to implement a data-driven hyperparameter selection. Using a real-time data set, we evaluate forecasts from the mixed-frequency VAR and compare them to standard quarterly-frequency VAR and to forecasts from MIDAS regressions. We document the extent to which information that becomes available within the quarter improves the forecasts in real time.


Digital
Identifying Long-Run Risks : A Bayesian Mixed-Frequency Approach
Authors: --- ---
Year: 2014 Publisher: Cambridge, Mass. National Bureau of Economic Research

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Abstract

We develop a nonlinear state-space model that captures the joint dynamics of consumption, dividend growth, and asset returns. Our model consists of an economy containing a common predictable component for consumption and dividend growth and multiple stochastic volatility processes. The estimation is based on annual consumption data from 1929 to 1959, monthly consumption data after 1959, and monthly asset return data throughout. We maximize the span of the sample to recover the predictable component and use high-frequency data, whenever available, to efficiently identify the volatility processes. Our Bayesian estimation provides strong evidence for a small predictable component in consumption growth (even if asset return data are omitted from the estimation). Three independent volatility processes capture different frequency dynamics; our measurement error specification implies that consumption is measured much more precisely at an annual than monthly frequency; and the estimated model is able to capture key asset-pricing facts of the data.


Digital
Sovereign Credit Risk and Exchange Rates : Evidence from CDS Quanto Spreads
Authors: --- ---
Year: 2018 Publisher: Cambridge, Mass. National Bureau of Economic Research

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Abstract

Sovereign CDS quanto spreads--the difference between CDS premiums denominated in U.S. dollars and a foreign currency--tell us how financial markets view the interaction between a country's likelihood of default and associated currency devaluations (the Twin Ds). A noarbitrage model applied to the term structure of quanto spreads can isolate the interaction between the Twin Ds and gauge the associated risk premiums. We study countries in the Eurozone because their quanto spreads pertain to the same exchange rate and monetary policy, allowing us to link cross-sectional variation in their term structures to cross-country differences in fiscal policies. The ratio of the risk-adjusted to the true default intensities is 2, on average. Conditional on the occurrence of default, the true and risk-adjusted 1-week probabilities of devaluation are 5% and 77%, respectively. The risk premium for the euro devaluation in case of default exceeds the regular currency premium by up to 0.3% per week.


Digital
The Term Structure of Equity Risk Premia
Authors: --- --- ---
Year: 2019 Publisher: Cambridge, Mass. National Bureau of Economic Research

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Abstract

We use traded equity dividend strips from U.S., Europe, and Japan from 2004-2017 to study the slope of the term structure of equity dividend risk premia. In the data, a robust finding is that the term structure of dividend risk premia (growth rates) is positively (negatively) sloped in expansions and negatively (positively) sloped in recessions. We develop a consumption-based regime switching model which matches these robust data-features and the historical probabilities of recession and expansion regimes. The unconditional population term structure of dividend-risk premia in the regime-switching model, as in standard asset pricing models (habits and long-run risks), is increasing with maturity. The regime-switching model also features a declining average term structure of dividend risk-premia if recessions are over-represented in a short sample, as is the case in the data sample from Europe and Japan. In sum, our analysis shows that the empirical evidence in dividend strips is entirely consistent with a positively sloped term structure of dividend risk-premia as implied by standard asset pricing models.


Book
Real-Time Forecasting with a Mixed-Frequency VAR
Authors: --- ---
Year: 2013 Publisher: Cambridge, Mass. National Bureau of Economic Research

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Abstract

This paper develops a vector autoregression (VAR) for time series which are observed at mixed frequencies - quarterly and monthly. The model is cast in state-space form and estimated with Bayesian methods under a Minnesota-style prior. We show how to evaluate the marginal data density to implement a data-driven hyperparameter selection. Using a real-time data set, we evaluate forecasts from the mixed-frequency VAR and compare them to standard quarterly-frequency VAR and to forecasts from MIDAS regressions. We document the extent to which information that becomes available within the quarter improves the forecasts in real time.

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Book
Real-Time Forecasting with a (Standard) Mixed-Frequency VAR During a Pandemic
Authors: --- ---
Year: 2021 Publisher: Cambridge, Mass. National Bureau of Economic Research

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Abstract

We resuscitated the mixed-frequency vector autoregression (MF-VAR) developed in Schorfheide and Song (2015, JBES) to generate macroeconomic forecasts for the U.S. during the COVID-19 pandemic in real time. The model combines eleven time series observed at two frequencies: quarterly and monthly. We deliberately did not modify the model specification in view of the COVID-19 outbreak, except for the exclusion of crisis observations from the estimation sample. We compare the MF-VAR forecasts to the median forecast from the Survey of Professional Forecasters (SPF). While the MF-VAR performed poorly during 2020:Q2, subsequent forecasts were at par with the SPF forecasts. We show that excluding a few months of extreme observations is a promising way of handling VAR estimation going forward, as an alternative of a sophisticated modeling of outliers.

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Digital
Improving GDP Measurement : A Forecast Combination Perspective
Authors: --- --- --- ---
Year: 2011 Publisher: Cambridge, Mass. National Bureau of Economic Research

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Two often-divergent U.S. GDP estimates are available, a widely-used expenditure side version, GDPE, and a much less widely-used income-side version GDPI . We propose and explore a "forecast combination" approach to combining them. We then put the theory to work, producing a superior combined estimate of GDP growth for the U.S., GDPC. We compare GDPC to GDPE and GDPI , with particular attention to behavior over the business cycle. We discuss several variations and extensions.


Book
The term structure of CIP violations
Authors: --- --- --- ---
Year: 2020 Publisher: Cambridge, Mass. National Bureau of Economic Research

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We show theoretically that persistent deviations from covered interest parity (CIP) across multiple horizons imply simultaneous arbitrage opportunities only if uncollateralized interbank lending rates are riskless. In the absence of observable riskless discount rates, we extract them empirically from interest rate swaps using a simple no-arbitrage framework. They deliver novel quantitative benchmarks that reconcile a zero cross-currency basis with non-zero cross-currency basis swap rates. We quantify that the no-arbitrage benchmark, which is consistent with intermediary-based asset pricing paradigms, accounts for about two thirds of the alleged CIP deviations. The residual pricing errors are associated with the limits-to-arbitrage framework.

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Book
The Long-Term Impact of the COVID-19 Unemployment Shock on Life Expectancy and Mortality Rates
Authors: --- --- ---
Year: 2020 Publisher: Cambridge, Mass. National Bureau of Economic Research

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Abstract

We adopt a time series approach to investigate the historical relation between unemployment, life expectancy, and mortality rates. We fit Vector-autoregressions for the overall US population and for groups identified based on gender and race. We use our results to assess the long-run effects of the COVID-19 economic recession on mortality and life expectancy. We estimate the size of the COVID-19-related unemployment shock to be between 2 and 5 times larger than the typical unemployment shock, depending on race and gender, resulting in a significant increase in mortality rates and drop in life expectancy. We also predict that the shock will disproportionately affect African-Americans and women, over a short horizon, while the effects for white men will unfold over longer horizons. These figures translate in more than 0.8 million additional deaths over the next 15 years.

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Book
Benchmark Interest Rates When the Government is Risky
Authors: --- --- --- ---
Year: 2019 Publisher: Cambridge, Mass. National Bureau of Economic Research

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Abstract

Since the Global Financial Crisis, rates on interest rate swaps have fallen below maturity matched U.S. Treasury rates across different maturities. Swap rates represent future uncollateralized borrowing between banks. Treasuries should be expensive and produce yields that are lower than those of maturity matched swap rates, as they are deemed to have superior liquidity and to be safe, so this is a surprising development. We show, by no-arbitrage, that the U.S. sovereign default risk explains the negative swap spreads over Treasuries. This view is supported by a quantitative equilibrium model that jointly accounts for macroeconomic fundamentals and the term structures of interest and U.S. credit default swap rates. We account for interbank credit risk, liquidity effects, and cost of collateralization in the model. Thus, the sovereign risk explanation complements others based on frictions such as balance sheet constraints, convenience yield, and hedging demand.

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