Doktorgrades an der Wirtschaftswissenschaftlichen Fakult¨at der Universit¨at G¨ottingen vorgelegt von Andreas Stadie aus …¨angigkeiten 136 4.4.5 Voraussage der Volatilit¨at im Zeitverlauf 138 4.4.6 Perioden unter– bzw. ¨ubersch¨atzter Volatilit¨at 141 4 ….7 Zentrierte CUSUMSQ der NPR. 139 4.8 Folge betragsm¨aßig gr¨oßerer NPR bei Prognose geringerer Vo- latilit¨at (oben) und Folge …

Eric Zivot for helpful comments. We also thank the participants in the Applied Time Series Research Group at Washington … University in St. Louis; the Macro-International Seminar at George Washington University; the SNDE 2007 meetings in Paris; the … SHERPPA seminar at the University of Ghent, Belgium; the CeMENT workshop in New Orleans, the International Finance Seminar at …

autocor- relation function dies out very slowly at a hyperbolic rate, thus suggesting distant observations to be highly … correlated. When the focus is on the analysis of financial time series loads of high-quality data will typically be available at … conjecture is that long memory can be caused by the presence of non-linearities of the time series. There is already some work …

abnormal gains really evidence of private information revelation by the action of better-informed agents? We see at least …) insider trading profit is realized at the expense of outside investors, even if total welfare may increase or decrease …,244 aggregated insider open market episodes. Previous studies mostly look at what is happening ex post to insider trading in terms …

) tests (or efficient score tests) for fractional integration. Multivariate procedures are important since most applied work … I (1), for multiple time series, and our work can thus also be seen as a generalization of their work with the important … stationary and has spectral density that is bounded and bounded away from zero at the origin. The process y t generated by (1) is …

econometric work in this field, which uses annual time series or panel data, we exploit high-frequency data from a power … also influence the behavior of fixed-price consumers in the short run. All this renders impossible a well-considered a … market was at the country level. In our study we use a simultaneous supply and demand model approach. The model comprises …

means of diagnosing and treating disease. Biotechnology is at the heart of an important and fast-growing new sector of the U …-sector investment in product development. Most biotech firms operate at a loss, spending large amounts on research and development for … commercialization. • Twenty-eight metropolitan areas have some biotechnology research and commercialization but at levels well below …

. When students have to decide which university to attend (or professors in which university to work), they generally make a … relative competence. When students have to decide which university to attend, or professors in which university to work, the … believe the reverse, inverting thereby their preferences for �rm 1 at the advantage of �rm 2. Thus, and in contrast with the …