Zależności pomiędzy stopami procentowymi rynku międzybankowego w Polsce
Interdependences Between Interest Rates on the Polish Interbank Market

Summary/Abstract: In the article we verify the direction of impulse response between volatility of POLONIA rate and interbank interest rates. The authors concentrate especially on the power of POLONIA and WIBOR SW volatility impulses. POLONIA rate is controlled by Polish Central Bank since the beginning of 2008. As the conditional volatility of interest rates is unobservable, and the absence of intraday quotations prevent from estimation of realized volatility, we determine volatility using the GO-GARCH model introduced by Van der Weide in [25]. To identify impulses in variance series we use VAR model.

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