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covariance determinant (MCD) estimator to detect and to shrink multivariate outliers in financial data. We use MCD-based RSDs … covariance estimates for detecting multivariate outliers. In the process, we show that univariate trimming and Winsorization are …
Persistent link: https://www.econbiz.de/10012946531
The traditional CAPM beta is almost exclusively calculated over a return period that spans a window length of 60-months, at one-month return frequencies. It is one of the most utilized models in the asset management industry to assess systematic risk. Yet there is limited evidence to suggest...
Persistent link: https://www.econbiz.de/10014235953
Investors have traditionally relied on mean-variance analysis to determine a portfolio’s optimal asset mix, but they have struggled to incorporate private equity into this framework because they do not know how to estimate its risk. The observed volatility of private equity returns is...
Persistent link: https://www.econbiz.de/10012225151
In a highly interconnected financial economy, deciphering co-dependencies between asset prices and their time-varying dynamics is challenging and important for sound financial decisions. This paper develops a framework to study dynamic features of a financial network, that incorporates...
Persistent link: https://www.econbiz.de/10013029179
In this paper, we examine the validity of hedonic models for estimating heterogeneous assets returns. We look into the art markets, and show that the returns on hedonic indices strictly depend on the specifications of the model. Different sets of variables lead to different returns. This means...
Persistent link: https://www.econbiz.de/10012064421
Persistent link: https://www.econbiz.de/10009720703
We employ a wavelet approach and conduct a time-frequency analysis of dynamic correlations between pairs of key traded assets (gold, oil, and stocks) covering the period from 1987 to 2012. The analysis is performed on both intra-day and daily data. We show that heterogeneity in correlations...
Persistent link: https://www.econbiz.de/10010515402
Cryptocurrencies such as Bitcoin are establishing themselves as an investment asset and are often named the New Gold. This study, however, shows that the two assets could barely be more different. Firstly, we analyze and compare conditional variance properties of Bitcoin and Gold as well as...
Persistent link: https://www.econbiz.de/10011906446
This article re-examines the issue of cross-sectional correlation. Kolari and Pynnonen (2010) find that, in the case of event-date clustering with the same event window for all firms, relatively low cross-sectional correlation among abnormal returns can seriously bias standard tests to...
Persistent link: https://www.econbiz.de/10012852434
The aim of this work was to test how returns are distributed across multiple asset classes, markets and sampling frequency. We examine returns of swaps, equity and bond indices as well as the rescaling by their volatilities over different horizons (since inception to Q2-2020). Contrarily to some...
Persistent link: https://www.econbiz.de/10012596311