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On stationarity and cointegration of international health expenditure and GDP

Gerdtham, Ulf-G.; Löthgren, Mickael - 1998

Persistent link: https://www.econbiz.de/10000984764

Testing parameter constancy in unit root autoregressive models against continuous change

He, Changli (contributor); Sandberg, Rickard (contributor) - 2005 - [Elektronische Ressource], Rev. February 8, 2005

In this paper we derive tests for parameter constancy when the data generating process is non-stationary against the hypothesis that the parameters of the model change smoothly over time. To obtain the asymptotic distributions of the tests we generalize many theoretical results, as well as new...

Persistent link: https://www.econbiz.de/10002570513

Statistical properties of the asymmetric power ARCH process

He, Changli; Teräsvirta, Timo - 1997

Persistent link: https://www.econbiz.de/10000971492

Finite dimensional Markovian realizations for stochastic volatility forward rate models

Björk, Tomas (contributor); Landén, Camilla (contributor); … - 2002 - [Elektronische Ressource], This version: May 6, 2002

we use the previously developed Hilbert space realization theory in order provide general necessary and sufficent … the theory by analyzing a number of concrete examples. -- HJM models ; stochastic volatility ; factor models ; forward …

Persistent link: https://www.econbiz.de/10001664233