for their useful comments and suggestions. We are also grateful to Cédric Tille, editor at the Swiss Journal of Economics and Statistics and two anonymous referees for their careful reading of the paper and their help to improve our paper. Furthermore, we thank the participants at the Swiss National Bank Brown Bag Seminar, at a workshop hosted by the State Secretariat for Economic Affairs in 2013 and at the SSES conference 2012 in Zurich for valuable inputs. The views expressed here are those of the authors and do not necessarily reflect the views of the Swiss National Bank.