"Should ECB End This Crisis Fighting Policy?", article in WSJ, 17.6.2015.
"Harsche Kritik an EZB-Sicherheitenregeln", article in Börsenzeitung, 11.6.2015, drawing on a recent study "Collateral, Central Bank Repos, and Systemic Arbitrage" with Kjell Nyborg, Jörg Rocholl, and Jiri Woschitz.
"Eurozone interbank lending market during the Global and EZ crises", Voxeu.org Column, 2. April 2015
"Die EZB steht sich selbst im Weg", article in NZZ, 15.4.2015, putting my recent research on interbank markets and monetary policy instruments in perspective.
"Banken sollen Anlegern Aktien angedreht haben", an article in FAZ, 11.9.2013, covering our recent study "Is Proprietary Trading Detrimental to Retail Investors?" with A. Hackethal and Y. Karabulut.
"Banken laden unliebsame Aktien bei ihren Kunden ab", another article in Süddeutsche Zeitung, 11.9.2013, on our study.
"Banken jubeln Kunden unbeliebte Aktien unter", an article in Wirtschaftswoche, 13.9.2013, also featuring our study "Is Proprietary Trading Detrimental to Retail Investors?" with A. Hackethal and Y. Karabulut.
"Trau Deiner Bank nicht!", another article in FAS, 15.9.2013, about our study on "Is Proprietary Trading Detrimental to Retail Investors?".
"Ökonom will die Banken vom Tropf der EZB trennen", an article in WSJ Germany, 7.3.2013, based on an interview I gave on recent interbank market developments and monetary policy implementation.