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This paper proposes a novel regularisation method for the estimation of large covariance matrices, which makes use of insights from the multiple testing literature. The method tests the statistical significance of individual pair-wise correlations and sets to zero those elements that are not...
Persistent link: https://www.econbiz.de/10010361374
We introduce a new hybrid approach to joint estimation of Value at Risk (VaR) and Expected Shortfall (ES) for high quantiles of return distributions. We investigate the relative performance of VaR and ES models using daily returns for sixteen stock market indices (eight from developed and eight...
Persistent link: https://www.econbiz.de/10003891679
functional form of the conditional beta will inherit a nonstationary right hand side. Our approach uses the cointegrating …
Persistent link: https://www.econbiz.de/10012138849
This paper examines the stochastic behaviour of the realized betas within the one-factor CAPM for the six companies …
Persistent link: https://www.econbiz.de/10012194334
against Sharpe-Lintner CAPM and Fama-French three factor models are found mainly during the recent financial crisis. Also we …
Persistent link: https://www.econbiz.de/10011646274
Asset prices are a valuable source of information about financial market participants.expectations about key macroeconomic variables. However, the presence of time-varying risk premia requires an adjustment of market prices to obtain the market’s rational assessment of future price and policy...
Persistent link: https://www.econbiz.de/10012622575
of growth are statistically independent, the discount rate is increasing with maturity if and only if the beta of the … risk premium is not proportional to the beta of the investment. We apply these general results to the case of an uncertain … probability of macroeconomic catastrophes à la Barro (2006), and to the case of an uncertain trend or volatility of growth à la …
Persistent link: https://www.econbiz.de/10009689360
Applied work often studies the effect of a binary variable (“treatment”) using linear models with additive effects. I study the interpretation of the OLS estimands in such models when treatment effects are heterogeneous. I show that the treatment coefficient is a convex combination of two...
Persistent link: https://www.econbiz.de/10012223869
In this paper we study a class of weighted estimands, which we define as parameters that can be expressed as weighted averages of the underlying heterogeneous treatment effects. The popular ordinary least squares (OLS), two-stage least squares (2SLS), and two-way fixed effects (TWFE) estimands...
Persistent link: https://www.econbiz.de/10015358999
One of the leading methods of estimating the structural parameters of DSGE models is the VAR-based impulse response matching estimator. The existing asymptotic theory for this estimator does not cover situations in which the number of impulse response parameters exceeds the number of VAR model...
Persistent link: https://www.econbiz.de/10011418016