Arbeitspapier

Quantifying the components of the banks' net interest margin

Using unique data sets on German banks, we decompose their net interest margin and quantify the different components by estimating the costs of the various functions they perform. We investigate three major functions: namely, liquidity and payment management for the customers, the bearing of credit risk, and term transformation. For the year 2012, the costs of liquidity and payment management correspond, in the median, to 47%, the bearing of credit risk to 16%, and earnings from term transformation to 35% of the net interest margin, respectively. However, looking at the period 2005-2012, earnings from term transformation seem to account for a much smaller share (about 20%) of the median bank's net interest margin.

ISBN
978-3-95729-041-0
Language
Englisch

Bibliographic citation
Series: Bundesbank Discussion Paper ; No. 15/2014

Classification
Wirtschaft
Banks; Depository Institutions; Micro Finance Institutions; Mortgages
Subject
net interest margin
credit risk
term transformation
liquidity and payment management

Event
Geistige Schöpfung
(who)
Busch, Ramona
Memmel, Christoph
Event
Veröffentlichung
(who)
Deutsche Bundesbank
(where)
Frankfurt a. M.
(when)
2014

Handle
Last update
10.03.2025, 11:42 AM CET

Data provider

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Object type

  • Arbeitspapier

Associated

  • Busch, Ramona
  • Memmel, Christoph
  • Deutsche Bundesbank

Time of origin

  • 2014

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