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conditional heteroskedasticity. We show that the wild bootstrap provides convenient critical values for the considered OLS …-based statistics under both homoskedastic and conditionally heteroskedastic model errors. The wild bootstrap is easy to implement and … approximations. We prove further that the wild bootstrap retains its validity for inference within a system of pooled equations …
Persistent link: https://www.econbiz.de/10009612036
bootstrap resampling technique. The method is illustrated on S&P 500 index data. -- Identification, Bootstrap, Diffusion …
Persistent link: https://www.econbiz.de/10009613611
In this paper I analyse the effects of ignoring level shifts in the data generating process (DGP) on systems cointegration tests that do not accommodate level shifts. I consider two groups of Likelihood Ratio tests based on procedures suggested by Johansen (1988, 1995) and Saikkonen & Lütkepohl...
Persistent link: https://www.econbiz.de/10009626747
We make use in this article of a testing procedure suggested by Robinson (1994) for testing deterministic seasonality versus seasonal fractional integration. A new test statistic is developed to simultaneously test both, the order of integration of the seasonal component and the need of seasonal...
Persistent link: https://www.econbiz.de/10009612017
We introduce the notion of a convex measure of risk, an extension of the concept of a coherent risk measure defined in … the underlying space of scenarios. As a case study, we consider convex measures of risk defined in terms of a robust not … ion of bounded shortfall risk. In the context of a financial market model, it turns out that the representation theorem is …
Persistent link: https://www.econbiz.de/10009615426
This paper presents a general theory that works out the relation between coherent risk measures, valuation bounds, and … preferences, in the way many coherent risk measures are somewhat generic. -- coherent risk rneasures ; valuation bounds …
Persistent link: https://www.econbiz.de/10009581108
Persistent link: https://www.econbiz.de/10001917139
Persistent link: https://www.econbiz.de/10001916784
Persistent link: https://www.econbiz.de/10001916840
estimation …
Persistent link: https://www.econbiz.de/10009613598