Short-term forecasting of the Japanese economy using factor models

Marco Lombardi and Claudia Godbout

No 1428, Working Paper Series from European Central Bank

Abstract: While the usefulness of factor models has been acknowledged over recent years, little attention has been devoted to the forecasting power of these models for the Japanese economy. In this paper, we aim at assessing the relative performance of factor models over different samples, including the recent financial crisis. To do so, we construct factor models to forecast Japanese GDP and its subcomponents, using 38 data series (including daily, monthly and quarterly variables) over the period 1991 to 2010. Overall, we find that factor models perform well at tracking GDP movements and anticipating turning points. For most of the components, we report that factor models yield lower forecasting errors than a simple AR process or an indicator model based on Purchasing Managers' Indicators (PMIs). In line with previous studies, we conclude that the largest improvements in terms of forecasting accuracy are found for more volatile periods, such as the recent financial crisis. However, unlike previous studies, we do not find evident links between the volatility of the components and the relative advantage of using factor models. Finally, we show that adding the PMI index as an independent explanatory variable improves the forecasting properties of the factor models. JEL Classification: C50, C53, E37, E47

Keywords: factor models; forecasting; Japan; mixed frequency; nowcasting (search for similar items in EconPapers)
Date: 2012-03
New Economics Papers: this item is included in nep-for
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Citations: View citations in EconPapers (10)

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Working Paper: Short-Term Forecasting of the Japanese Economy Using Factor Models (2012)
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