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Kleinow, Torsten - 2002

In mathematical finance diffusion models are widely used and a variety of different parametric models for the drift and diffusion coefficient coexist in the literature. Since derivative prices depend on the particular parametric model of the diffusion coefficient function of the underlying, a...

Persistent link: https://www.econbiz.de/10009622677

Weekday dependence of German stock market returns

Herwartz, Helmut - 1999

The so-called 'Monday effect ' has been found for various stock markets of the world. The empirical finding that Monday returns are significantly smaller than returns measured for the remaining days of the week calls the efficiency hypothesis for pricing processes operating on stock markets into...

Persistent link: https://www.econbiz.de/10009580468

Money and prices : an I(2) analysis for the euro area

Holtemöller, Oliver - 2002

The concept of integrated stochastic processes is widely used in empirical macroeconomics; and cointegration analysis … considerable empirical method for extracting information from monetary aggregates for monetary policy purposes. -- cointegration …

Persistent link: https://www.econbiz.de/10009620770

Unemployment and input prices : a fractional cointegration approach

Caporale, Guglielmo Maria; Gil-Alaña, Luis A. - 2000

following the classical approach based on I(0) stationarity or I(1) cointegrating relationships, we use fractional integration/cointegration … three variables are I(1). But we only find cointegration in the presence of autocorrelated disturbances, which means that … opposed to classical cointegration, which implies long memory and slow reversion to equilibrium. This suggests that an …

Persistent link: https://www.econbiz.de/10009614880

Nonlinear error correction and the efficient market hypothesis : the case of German dual-class shares

Breitung, Jörg; Wulff, Christian - 1999

The efficient market hypothesis implies that asset prices cannot be cointegrated. On the other hand, arbitrage processes prevent prices of fundamentally related assets from drifting far away. An attractive model that reconciles these two conflicting facts is the nonlinear error correction...

Persistent link: https://www.econbiz.de/10009581105

Modelling seasonality with fractionally integrated processes

Gil-Alaña, Luis A. - 2000

We propose in this article the use of a particular version of the tests of Robinson (1994) for testing seasonally fractionally integrated processes. The tests have standard null and local limit distributions and allow us to test unit and fractional seasonal roots even with different amplitudes...

Persistent link: https://www.econbiz.de/10009582382

Fractional cointegration and tests of present value models

Caporale, Guglielmo Maria; Gil-Alaña, Luis A. - 2000

the null hypothesis of no cointegration against alternatives which are fractionally cointegrated. Monte Carlo simulations … (EMH) ; Present Value (PV) models ; fractional cointegration …

Persistent link: https://www.econbiz.de/10009582383

Fractional integration and the dynamics of UK unemployment

Gil-Alaña, Luis A.; Henry, S. G. B. - 2000

This article is concerned with the dynamic behaviour of UK unemployment. However, instead of using traditional approaches based on I(0) stationary or I(1) (integrated and/or cointegrated) models, we use the fractional integration framework. In doing so, we allow for a more careful study of the...

Persistent link: https://www.econbiz.de/10009582384

Testing stochastic cycles in macroeconomic time series

Gil-Alaña, Luis A. - 2000

A particular version of the tests of Robinson (1994) for testing stochastic cycles in macroeconomic time series is proposed in this article. The tests have a standard limit distribution and are easy to implement in raw time series. A Monte Carlo experiment is conducted, studying the size and the...

Persistent link: https://www.econbiz.de/10009611541

Fractional cointegration and real exchange rates

Caporale, Guglielmo Maria; Gil-Alaña, Luis A. - 2000

This paper uses fractional integration and cointegration in order to model the DM/dollar and the yen/dollar real …. -- fractional integration ; fractional cointegration ; real exchange rates …

Persistent link: https://www.econbiz.de/10009611542