2 IZA Discussion Papers
IZA Discussion Paper No. 4322
revised version published as 'Labor Selection, Turnover Costs and Optimal Monetary Policy' in: Journal of Money, Credit, and Banking, 2014, 46 (1), 115–144
IZA Discussion Paper No. 3513
substantially revised version published in: Journal of Economic Dynamics and Control, 2010, 34 (5), 968-983