1. ZEW Discussion Paper Nr. 00-70 // 2000

    Imposing and Testing Curvature conditions on a Box-Cox Function

    Many empirical studies in applied production analysis are based on functional forms that have to satisfy some curvature conditions in order to be compatible with microeconomic theory. Curvature conditions means…

  2. ZEW Discussion Paper Nr. 00-69 // 2000

    How Much Does a Year off Cost? - Estimating the Wage Effects of Employment Breaks and Part-Time Periods

    Discontinuities in the employment profile are supposed to cause wage cuts since they imply an interruption in the accumulation of human capital as well as a depreciation of the human capital stock built up in…