Discussion paper DP4255 How Often Should you Open the Door? Optimal Monitoring to Screen Heterogeneous Agents Andrea Ichino Gerd Muehlheusser 23 Feb 2004 Labour Economics D20 D80
Discussion paper DP3847 The Effect of Employment Protection on Worker Effort: A Comparison of Absenteeism During and After Probation Andrea Ichino Regina Riphahn 23 Mar 2003 Labour Economics J38 J41