ZEW Discussion Papers

Overview

Researchers at the ZEW participate in scientific debates by publishing their papers. The papers are predominantly in English (marked). For the German papers an English abstract is available. The contributions are intended for a final publication in special interest titles. The discussion papers can be downloaded as PDF or PostScript files starting from 1.1.1998. They aimed at national and international target groups.

  1. ZEW Discussion Paper No. 97-05 // 1997

    GMM Estimation of an Euler Equation Model with German Firm Level Panel Data

    In this paper the outlier robustGMM panel data estimator recently proposed byLucas, van Dijk, and Kloek (1994) is applied to anEuler equation model of firm investment behaviourwith imperfectly competitive…

  2. ZEW Discussion Paper No. 97-14 // 1997

    Extended Benefit-Entitlement Periods and the Duration of Unemployment in West-Germany

    In the 1980s benefit-entitlement periods for older workers with long previous employment have been extended considerably in several steps. At the same time, income replacement ratios have been slightly reduced…

  3. ZEW Discussion Paper No. 97-07 // 1997

    Foul or Fair? The Heckman Correction for Sample Selection and its Critique - A Short Survey

    This paper gives a short overview of Monte Carlo studies on the usefulness of Heckman's (1976, 1979) two-step estimator for estimating a selection model. It shows that exploratory work to check for collinearity…

  4. ZEW Discussion Paper No. 97-03 // 1997

    All Quiet on the Wage Front: Gender, Public-Private Sector Issues, and Rigidities in the Polish Wage Structure

    We analyse the Polish wage and unemployment structure between 1992 and 1995 on the basis of the Polish Labour Force Survey. It is shown that within this period wage inequality has stabilised. Surprisingly, wage…

  5. ZEW Discussion Paper No. 96-32 // 1996

    Has Earnings Inequality in Germany Changed in the 1980s?

    The development of the West German earnings distributionin the 1980's is analysed on the basis of both the German Socio-EconomicPanel and micro-data from the Employment Register of the FederalLabour Office. We…

  6. ZEW Discussion Paper No. 96-31 // 1996

    Nonparametric Bounds on Employment and Income Effects of Continuous Vocational Training in East Germany

    This paper explores the potential of an approach suggested by Manski of obtaining nonparametric bounds for treatment effects in evaluation studies without knowledge of the participation process. The practicai…

  7. ZEW Discussion Paper No. 96-30 // 1996

    Poland on the Dole. Unemployment Benefits, Training and Long-Term Unemployment during Transition

    We analyse the duration of unemployment spells in Poland using data from the Polish Labour Force Survey of August 1994. The effects on the duration of unemployment of important socio-economic and demographic…

  8. ZEW Discussion Paper No. 96-29 // 1996

    Retail Distribution Channel Barriers to International Trade

    With the referral of the Kodak - Fuji market access dispute to the World Trade Organization, the role of retail distribution channel control by incumbent firms as a barrier to imports has drawn much interest.…

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Kerstin Heres

Kerstin Heres

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