This project has received
funding from the European Union's
Seventh Framework Programme


Inference for impulse response functions from multivariate strongly persistent processes


Read the paper

This paper considers a multivariate system of fractionally integrated time series and investigates the most appropriate way for estimating Impulse Response (IR) coefficients and their associated confidence intervals. The paper extends the univariate analysis recently provided by Baillie and Kapetanios (2013), and uses a semi parametric, time domain estimator, based on a vector autoregression (VAR) approximation. There are theoretical reasons for making the lag length of the VAR proportional to [ln(T)^2].

Results are also derived for the orthogonalized estimated IRs which are generally more practically relevant. Simulation evidence strongly indicates the desirability for applying the Kilian small sample bias correction, which is found to improve both the estimated orthogonalized and the non-orthogonalized IRs. The most appropriate order of the VAR turns out to be relevant for the lag length of the IR being estimated.

    Share Box


    Read our quarterly newsletters.


    RAstaNEWS, the EU and the World: Discover upcoming and past events



    Visit our Forum

    Interact with RAstaNEWS partners and other users.

    go to forum