ZEW Discussion Papers


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. 01-53 // 2001

    Simulated z-Tests in Multinomial Probit Models

    Within the framework of Monte Carlo experiments, this paper systematically compares different versions of the simulated z-test (using the GHK simulator) in one and multiperiod multinomial probit models. One…

  2. ZEW Discussion Paper No. 01-52 // 2001

    EU Enlargement and Environmental Policy

    The Eastern European Associates (EEA) have committed to reduce greenhouse gas emissions according to their targets set in the Kyoto Protocol. Furthermore since 1993 trade liberalization has taken place between…

  3. ZEW Discussion Paper No. 01-51 // 2001

    Timing of International Market Entry of UK and German High-Tech Start-Ups

    We examine the impact of technological product advantages, prior international experience of the management, firm size and age, country differences, and sunk costs as determinants of the timing of international…

  4. ZEW Discussion Paper No. 01-50 // 2001

    Differences in Response Patterns in a Mixed Mode - Online/Paper & Pencil Business Survey

    This paper investigates if significant differences exist between online and paper & pencil participants in a quarterly business survey in the German business-related services sector when respondents may freely…

  5. ZEW Discussion Paper No. 01-48 // 2001

    Diffusion of Information Technology, Internet Use and the Demand for Heterogeneous Labor

    This paper analyzes the link between the diusion of information- and communication technology (ICT) and both the skill structure and employment expectations of the dierent skill categories. The analysis is…

  6. ZEW Discussion Paper No. 01-45 // 2001

    Green Tax Reform and Employment: The Interaction of Profit and Factor Taxes

    The employment effects of an ecological tax reform depend decisively on the presence of a profit tax and on the extent to which profits are taxed. This is shown in a model where firms have monopoly power on…

  7. ZEW Discussion Paper No. 01-44 // 2001

    Identifying Labour Market Dynamics Using Labour Force Survey Data

    This paper evaluates the appropriateness of the standard methodologies and the quality of the data frequently used to analyse labour market dynamics in Europe. Our results indicate that, due to recall error…

  8. ZEW Discussion Paper No. 01-43 // 2001

    What Drives the Vacancy Rate for Information Technology Workers?

    This paper provides empirical evidence on both the magnitude and determinants of unfilled vacancies for information technology workers using cross-sectional data for 4150 German firms. Vacancies are defined…

  9. ZEW Discussion Paper No. 01-42 // 2001

    Accounting for Stock-Based Compensation: An Extended Clean Surplus Relation

    Residual income valuation is based on the assumption that the clean surplus relation holds. As pointed out by Ohlson (2000), among others, the standard clean surplus relation is frequently violated. …

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Kerstin Heres

Kerstin Heres

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