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Empirical Economics

, Volume 45, Issue 2, pp 905–928 | Cite as

What are the bank-specific and macroeconomic drivers of banks’ leverage? Evidence from Luxembourg

  • Gaston Giordana
  • Ingmar SchumacherEmail author
Article

Abstract

We investigate the leverage cycle in Luxembourg’s banking sector using individual bank-level data for the period 2003 Q1–2010 Q1. One of our findings is that Luxembourg’s banks have a procyclical leverage. This procyclicality is not due to marking-to-market but because Luxembourg’s banks are liquidity providers to the EU banking sector. We then empirically investigate the role of bank characteristics as well as real, financial and expectation variables that proxy for macroeconomic conditions in the pre-crisis and crisis period. We find that off-balance sheet exposures have different effects in the pre-crisis and crisis period, and that the share of liquid assets in the portfolio only affects security holdings. As for macroeconomic variables, we find that the Euribor-OIS spread is a significant driver of the build-up in leverage in the pre-crisis period. The reason is that most banks in Luxembourg are either branches or subsidiaries. This makes leverage a less relevant indicator of riskiness for investors. It also implies that in times of liquidity shortages, mother companies or groups demand further liquidity from their branch or subsidiary. The downturn in leverage during the crisis can be accredited to reductions in expectations, which we proxy by an economic sentiment indicator. It can also be explained by increasing bond prices which induce depositors to shift their funds from bank deposits into bonds. We find no important role for GDP growth.

Keywords

Leverage dynamics Banking sector GMM estimation Crisis effect 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Financial Stability DepartmentBanque Centrale du LuxembourgLuxembourgLuxembourg
  2. 2.IPAG Business SchoolParisFrance
  3. 3.Department of EconomicsEcole PolytechniqueRoute de SaclayFrankreich

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