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Giacomo Mangiante

2 October 2018
MACROPRUDENTIAL BULLETIN - ARTICLE - No. 6
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Abstract
This article evaluates whether the global systemically important bank (G-SIB) framework has incentivised banks to adopt window-dressing behaviour, and whether their engagement in capital market activities has facilitated it. Window-dressing behaviour could have detrimental effects on financial stability, for at least two reasons: first, it may imply an underestimation of banks’ overall systemic importance and a distortion of the relative ranking in favour of banks that engage in more window-dressing behaviour; second, overall market functioning may be adversely affected if banks reduce the provision of certain services towards the end of the year. The evidence presented in this article suggests that both G-SIBs and banks with reporting obligations have reduced their overall risk score and some of their individual risk indicators at the end of a calendar year, both in absolute terms and relative to the other banks in the sample. The results also indicate that year-end reductions in capital market activities are a main driver of the observed window-dressing behaviour.
JEL Code
G21 : Financial Economics→Financial Institutions and Services→Banks, Depository Institutions, Micro Finance Institutions, Mortgages
G28 : Financial Economics→Financial Institutions and Services→Government Policy and Regulation
G38 : Financial Economics→Corporate Finance and Governance→Government Policy and Regulation
29 July 2019
WORKING PAPER SERIES - No. 2298
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Abstract
This paper illustrates that systemically important banks reduce a range of activities at year-end, leading to lower additional capital requirements in the form of G-SIB buffers. The effects are stronger for banks with higher incentives to reduce the indicators, and for banks with balance sheet structures that can more easily be adjusted. The observed reduction in activity may imply an overall underestimation of banks' systemic importance as well as a distortion in their relative ranking, with implications for banks' ability to absorb losses. Moreover, a reduction in the provision of certain services at year-end may adversely affect overall market functioning.
JEL Code
G20 : Financial Economics→Financial Institutions and Services→General
G21 : Financial Economics→Financial Institutions and Services→Banks, Depository Institutions, Micro Finance Institutions, Mortgages
G28 : Financial Economics→Financial Institutions and Services→Government Policy and Regulation