# 16-066/IV (2016-08-29)

Author(s)
Andre Lucas, VU University Amsterdam, the Netherlands; Julia Schaumburg, VU University Amsterdam, the Netherlands; Bernd Schwaab, European Central Bank, Germany
Keywords:
bank business models, clustering; finite mixture model, score-driven model, low interest rates
JEL codes:
C33, G21

We propose a novel observation-driven dynamic finite mixture model for the study of banking data.
The model accommodates time-varying component means and covariance matrices, normal and Student's $t$ distributed mixtures, and economic determinants of time-varying parameters. Monte Carlo experiments suggest that units of interest can be classified reliably into distinct components in a variety of settings. In an empirical study of 208 European banks between 2008Q1--2015Q4, we identify six business model components and discuss how these adjust to post-crisis financial developments.
Specifically, bank business models adapt to changes in the yield curve.