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We conduct a pseudo real-time analysis of the existence and severity of speculative bubbles in eleven US sectors over …
Persistent link: https://www.econbiz.de/10012968410
Forecasts are useless whenever the forecast error variance fails to be smaller than the unconditional variance of the target variable. This paper develops tests for the null hypothesis that forecasts become uninformative beyond some limiting forecast horizon h. Following Diebold and Mariano (DM,...
Persistent link: https://www.econbiz.de/10011826055
Persistent link: https://www.econbiz.de/10012846432
We investigate the effect of estimation error on backtests of (multi-period) expected shortfall (ES) forecasts. These … estimation error, and propose robust tests that account for it. Monte Carlo experiments show that the tests that ignore these …, we find that estimation error substantially impacts the outcome of the backtests. …
Persistent link: https://www.econbiz.de/10012057163
In this paper, we investigate the dynamics of age-cohort survival curves under the assumption that the instantaneous mortality intensity is driven by an affine jump-diffusion (AJD) process. Advantages of an AJD specification of mortality dynamics include the availability of closed-form...
Persistent link: https://www.econbiz.de/10014076956
We present in this paper an alternative approach to determining and predicting the fluctuations in the daily prices and stock returns of a first-generation bank in the Nigerian Stock Market (NSM). The approach uses a three-state Markov to estimate the expected duration of the asset returns in...
Persistent link: https://www.econbiz.de/10011661502
We develop a method for long-run predictability testing in series Y by a persistent series X. We consider a class of tests based on the long-run behavior of these series that are robust to short-run dynamics and attempt to attain the highest possible power. The test is based on the Whittle...
Persistent link: https://www.econbiz.de/10012852616
Persistent link: https://www.econbiz.de/10011301934
theory assumes that return shocks can be caused by changes in conditional volatility through a time-varying risk premium. On … leverage effect and the volatility feedback effect. We stress the importance of distinguishing between realized volatility and … implied volatility, and find that implied volatilities are essential for assessing the volatility feedback effect. The …
Persistent link: https://www.econbiz.de/10013128856
In this paper, we consider the forecast evaluation of realized volatility measures under cross-section dependence using …-section when forecasting Realized Volatility. Under the null hypothesis of equal predictive accuracy the benchmark model employed …
Persistent link: https://www.econbiz.de/10013306884