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Forecasts in a Slightly Misspecified Finite Order VAR
Müller, Ulrich K. - 2011
We propose a Bayesian procedure for exploiting small, possibly long-lag linear predictability in the innovations of a finite order autoregression. We model the innovations as having a log-spectral density that is a continuous mean-zero Gaussian process of order 1/√T. This local embedding makes...
Persistent link: https://www.econbiz.de/10012461943
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International Asset Allocation with Time-Varying Correlations
Ang, Andrew - 1999
It is widely believed that correlations between international equity markets tend to increase in highly volatile bear markets. This has led some to doubt the benefits of international diversification. This article solves the dynamic portfolio choice problem of a US investor faced with a...
Persistent link: https://www.econbiz.de/10012471745
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On Portfolio Optimization : Forecasting Covariances and Choosing the Risk Model
Chan, Louis K.C. - 1999
We evaluate the performance of different models for the covariance structure of stock returns, focusing on their use for optimal portfolio selection. Comparisons are based on forecasts of future covariances as well as the out-of-sample volatility of optimized portfolios from each model. A few...
Persistent link: https://www.econbiz.de/10012471761
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On the Correlation Structure of Microstructure Noise : A Financial Economic Approach
Diebold, Francis X. - 2010
volatility estimation. In particular, we use market microstructure theory to derive the cross-correlation function between latent … returns and market microstructure noise, which feature prominently in the recent volatility literature. The cross-correlation … geometrically. If market makers are sufficiently risk averse, however, the cross-correlation pattern is inverted. Our results are …
Persistent link: https://www.econbiz.de/10012462188
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Risk Reduction in Large Portfolios : Why Imposing the Wrong Constraints Helps
Jagannathan, Ravi - 2002
Mean-variance efficient portfolios constructed using sample moments often involve taking extreme long and short positions. Hence practitioners often impose portfolio weight constraints when constructing efficient portfolios. Green and Hollifield (1992) argue that the presence of a single...
Persistent link: https://www.econbiz.de/10012469792
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The Cross-Section of Risk and Return
Daniel, Kent - 2017
In the finance literature, a common practice is to create factor-portfolios by sorting on characteristics (such as book-to-market, profitability or investment) associated with average returns. The goal of this exercise is to create a parsimonious set of factor-portfolios that explain the...
Persistent link: https://www.econbiz.de/10012453549
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A Sharper Ratio : A General Measure for Correctly Ranking Non-Normal Investment Risks
Smetters, Kent - 2013
While the Sharpe ratio is still the dominant measure for ranking risky assets, a substantial effort has been made over the past three decades to find a way to account for non-Normally distributed risks. This paper derives a generalized ranking measure which, under a regularity condition,...
Persistent link: https://www.econbiz.de/10012459163
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Strategic Asset Allocation in a Continuous-Time VAR Model
Campbell, John Y. - 2003
This note derives an approximate solution to a continuous-time intertemporal portfolio and consumption choice problem. The problem is the continuous-time equivalent of the discrete-time problem studied by Campbell and Viceira (1999), in which the expected excess return on a risky asset follows...
Persistent link: https://www.econbiz.de/10012469153
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Money and Output : Friedman and Schwartz Revisited
Belongia, Michael T. - 2015
More than fifty years ago, Friedman and Schwartz examined historical data for the United States and found evidence of pro-cyclical movements in the money stock, which led corresponding movements in output. We find similar correlations in more recent data; these appear most clearly when Divisia...
Persistent link: https://www.econbiz.de/10012456875
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The Determinants of Stock and Bond Return Comovements
Baele, Lieven - 2009
We study the economic sources of stock-bond return comovements and its time variation using a dynamic factor model. We identify the economic factors employing a semi-structural regime-switching model for state variables such as interest rates, inflation, the output gap, and cash flow growth. We...
Persistent link: https://www.econbiz.de/10012463390