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Economic activity 2008: Forecasting and reality

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  • Wolfgang Nierhaus

Abstract

For years the Ifo Institute has examined the quality of its own economic forecasts and has discussed the reasons for the differences between forecasting and reality. Economically, 2008 turned out to be an annus horribilis both in Germany and in the world. At the end of 2007 the Ifo Institute had indeed expected a perceptible slowdown in the growth pace in Germany and the world on the basis of leading indicators, cyclical considerations and risk estimates for 2008. Such a drastic worsening in economic activity as what occurred was not anticipated, however. Of the total estimation error of 0.5 percentage points for the average growth rate in GDP, 0.1 percentage points was due to a marginal overestimation of the statistical overhang for 2008. This, according to the official statistics, amounted to 0.6%; in the December Ifo forecast we anticipated an overhang of 0.7%. The remaining forecasting error (0.4 percentage points) is attributable to strong cyclical changes. In the first half of 2008 economic output expanded, with some fluctuations, at an even stronger pace than expected by the Ifo Institute. Since early summer 2008, economic activity in Germany turned downwards, however, as the worsening of the external economic environment (appreciation of the euro, rise in crude oil prices, recessions in the US and Japan) came more and more to the fore. In September the world financial crisis reached a dramatic climax. Real GDP started to fall in the third quarter; in the fourth quarter there was a massive decline in value added and production. The German economy went into recession.

Suggested Citation

  • Wolfgang Nierhaus, 2009. "Economic activity 2008: Forecasting and reality," ifo Schnelldienst, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 62(03), pages 21-25, February.
    • Handle: RePEc:ces:ifosdt:v:62:y:2009:i:03:p:21-25
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    File URL: https://www.ifo.de/DocDL/ifosd_2009_3_3.pdf
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    References listed on IDEAS

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    1. Klaus Abberger & Wolfgang Nierhaus, 2008. "Ifo capacity utilisation – a coincident indicator for business activity in German manufacturing," ifo Schnelldienst, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 61(16), pages 15-23, August.
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    Cited by:

    1. Steffen Henzel & Wolfgang Nierhaus & Timo Wollmershäuser, 2014. "Evaluation der ifo Konjunkturprognosen," ifo Schnelldienst, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 67(17), pages 43-45, September.

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    More about this item

    JEL classification:

    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles

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