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Persistent link: https://www.econbiz.de/10003839329
This paper considers the problem of model uncertainty in the case of multi-asset volatility models and discusses the … management. Evaluation of volatility models is then considered and a simple Value-at-Risk (VaR) diagnostic test is proposed for …
Persistent link: https://www.econbiz.de/10013316571
The recent plunge in oil prices has brought into question the generally accepted view that lower oil prices are good for the US and the global economy. In this paper, using a quarterly multi-country econometric model, we first show that a fall in oil prices tends relatively quickly to lower...
Persistent link: https://www.econbiz.de/10011502542
This paper investigates the global macroeconomic consequences of country-specific oil-supply shocks. Our contribution is both theoretical and empirical. On the theoretical side, we develop a model for the global oil market and integrate this within a compact quarterly model of the global economy...
Persistent link: https://www.econbiz.de/10010528313
Persistent link: https://www.econbiz.de/10003641741
Persistent link: https://www.econbiz.de/10003671171
of world output. The forecasts are compared to typical benchmarks: univariate autoregressive and random walk models …
Persistent link: https://www.econbiz.de/10003781456
Covid-19. We show that there exist threshold effects in the relationship between output growth and excess global volatility … observations. Our results show that the Covid-19 pandemic will lead to a significant fall in world output that is most likely long …
Persistent link: https://www.econbiz.de/10012293790
This paper characterizes the asymptotic behaviour, as the number of assets gets arbitrarily large, of the portfolio weights for the class of tangency portfolios belonging to the Markowitz paradigm. It is assumed that the joint distribution of asset returns is characterized by a general factor...
Persistent link: https://www.econbiz.de/10003720566
This paper argues that probability forecasts convey information on the uncertainties that surround macroeconomic forecasts in a manner which is straightforward and which is preferable to other alternatives, including the use of confidence intervals. Probability forecasts relating to UK output...
Persistent link: https://www.econbiz.de/10013321125