The efficiency of the Scandinavian banking sector - a wavelet quantile regression analysis

P䲠 Sjölander, Ghazi Shukur, Kristofer M害son and Orsa Kekezi
Authors registered in the RePEc Author Service: Kristofer Månsson ()

Applied Economics, 2015, vol. 47, issue 50, 5378-5389

Abstract: In this article, the Scandinavian housing financing market is analysed in order to determine whether the interest rate price-discovery processes of Denmark, Norway and Sweden are efficient. Based on wavelet quantile regression analysis, we find systematic positive asymmetric price transmission (APT) inefficiencies. We conclude that there is a very high propensity for mortgage lenders to directly increase its customers' mortgage interest rates subsequently to an increase in its borrowing costs. However, after a corresponding borrowing cost decrease, the same mortgage lenders are very slow to decrease its customers' mortgage rates. These positive coefficients for so-called APT effects are found in all Scandinavian countries, even if the coefficients for Norway were not statistically significant. Wavelet quantile regression analysis, with a focus on the relevant higher percentiles, is easily motivated since the mortgage rates are adjusted very infrequently. Moreover, wavelet decomposition allows a robust analysis at different time frequency scales, while simultaneously controlling for nonstationary trends, autocorrelation and structural breaks. Except for the still positive but yet insignificant and inconclusive coefficients for Norway, the result is very clear-cut. Regardless of which wavelet scaling decomposition or quantile coefficient that is studied - positive APT effects are clearly identified and confirmed on the Scandinavian mortgage market.

Date: 2015
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Citations: View citations in EconPapers (4)

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DOI: 10.1080/00036846.2015.1047092

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