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The Macroeconomic Projections of the German Government: A Comparison to an Independent Forecasting Institution

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  • Robert Lehmann
  • Timo Wollmershäuser

Abstract

This paper investigates the macroeconomic projections of the German government since the 1970s and compares it those of the Joint Economic Forecast, which is an in-dependent forecasting institution in Germany. Our results indicate that nominal GDP projections are upward biased for longer forecast horizons, which seems to be driven by a false assessment of the decline in Germany’s trend growth and a systematic failure to correctly anticipate recessions. We show that the German government also deviates from the projections of the Joint Economic Forecast, which in fact worsened the forecast accuracy. Finally, we find evidence that these deviations are driven by political motives.

Suggested Citation

  • Robert Lehmann & Timo Wollmershäuser, 2019. "The Macroeconomic Projections of the German Government: A Comparison to an Independent Forecasting Institution," CESifo Working Paper Series 7460, CESifo.
    • Handle: RePEc:ces:ceswps:_7460
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    Cited by:

    1. Heinemann, Friedrich & Janeba, Eckhard & Todtenhaupt, Maximilian, 2022. "Incumbency and expectations of fiscal rule compliance: Evidence from surveys of German policy makers," European Journal of Political Economy, Elsevier, vol. 72(C).
    2. Robert Lehmann, 2024. "A real-time regional accounts database for Germany with applications to GDP revisions and nowcasting," Empirical Economics, Springer, vol. 67(2), pages 817-838, August.
    3. Ademmer Martin & Boysen-Hogrefe Jens, 2022. "The Impact of Forecast Errors on Fiscal Planning and Debt Accumulation," Journal of Economics and Statistics (Jahrbuecher fuer Nationaloekonomie und Statistik), De Gruyter, vol. 242(2), pages 171-190, April.
    4. Marcell Göttert & Robert Lehmann, 2021. "Tax Revenue Forecast Errors: Wrong Predictions of the Tax Base or the Elasticity?," CESifo Working Paper Series 9148, CESifo.
    5. Fabian Kruger & Hendrik Plett, 2022. "Prediction intervals for economic fixed-event forecasts," Papers 2210.13562, arXiv.org, revised Mar 2024.

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    More about this item

    Keywords

    macroeconomic forecasting; forecast accuracy; independent forecasting; political economic biases;
    All these keywords.

    JEL classification:

    • E30 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - General (includes Measurement and Data)
    • E37 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Forecasting and Simulation: Models and Applications
    • E39 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Other

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