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Firm heterogeneity and credit risk diversification

Hanson, Samuel; Pesaran, Mohammad Hashem; Schuermann, Til - 2005

This paper considers a simple model of credit risk and derives the limit distribution of losses under different assumptions regarding the structure of systematic and idiosyncratic risks and the nature of firm heterogeneity. The theoretical results obtained indicate that if firm-specific risk...

Persistent link: https://www.econbiz.de/10010276169

Learning, structural instability and present value calculations

Pesaran, Mohammad Hashem; Pettenuzzo, Davide; … - 2006

Present value calculations require predictions of cash flows both at near and distant future points in time. Such predictions are generally surrounded by considerable uncertainty and may critically depend on assumptions about parameter values as well as the form and stability of the data...

Persistent link: https://www.econbiz.de/10010276173

Modelling volatilities and conditional correlations in futures markets with a multivariate t distribution

Pesaran, Bahram; Pesaran, Mohammad Hashem - 2007

than by GARCH type volatility estimates. The t-DCC estimation procedure is applied to a portfolio of daily returns on …-DCC specification. The t-DCC model also passes a number of VaR diagnostic tests over an evaluation sample. The estimation results … correlations in most markets; possibly reflecting the advent of euro in 1999 and increased interdependence of financial markets. …

Persistent link: https://www.econbiz.de/10010276212

Forecasting random walks under drift instability

Pesaran, Mohammad Hashem; Pick, Andreas - 2008

This paper considers forecast averaging when the same model is used but estimation is carried out over different … estimation windows. It develops theoretical results for random walks when their drift and/or volatility are subject to one or … more structural breaks. It is shown that compared to using forecasts based on a single estimation window, averaging over …

Persistent link: https://www.econbiz.de/10010276222

Variable selection and inference for multi-period forecasting problems

Pesaran, Mohammad Hashem; Pick, Andreas; Timmermann, Allan - 2009

direct forecasts when estimation error is a first-order concern, i.e. in small samples and for long forecast horizons …

Persistent link: https://www.econbiz.de/10010276226

Conditional volatility and correlations of weekly returns and the VaR analysis of 2008 stock market crash

Pesaran, Bahram; Pesaran, Mohammad Hashem - 2010

Modelling of conditional volatilities and correlations across asset returns is an integral part of portfolio decision making and risk management. Over the past three decades there has been a trend towards increased asset return correlations across markets, a trend which has been accentuated...

Persistent link: https://www.econbiz.de/10010276271