The Real-Time Predictive Content of Asset Price Bubbles for Macro Forecasts

51 Pages Posted: 4 Aug 2015

See all articles by Benjamin Beckers

Benjamin Beckers

German Institute for Economic Research (DIW Berlin)

Date Written: July 2015

Abstract

This paper contributes to the debate of whether central banks can "lean against the wind" of emerging stock or house price bubbles. Against this background, the paper evaluates if new advances in real-time bubble detection, as brought forward by Phillips et al. (2011), can timely detect bubble emergences and collapses. Building on simulations, the paper shows that the detection capabilities of all indicators are sensitive to their exact specifications and to the characteristics of the bubbles in the sample. Therefore, the paper suggests a combination approach of different bubble indicators which helps to account for the uncertainty around start and end dates of asset price bubbles. Additionally, the paper then investigates if the individual and combination indicators carry predictive content for inflation and output growth when the real-time availability of all variables is taken into account. It finds that a combination indicator is best suited to uncover the most common stock and house price bubbles in the U.S. and shows that this indicator improves output forecasts.

Keywords: Asset price bubbles, financial stability, leaning-against-the-wind, monetary policy, real-time forecasting, unit root monitoring test

JEL Classification: C22, C53, E44, E47, G12

Suggested Citation

Beckers, Benjamin, The Real-Time Predictive Content of Asset Price Bubbles for Macro Forecasts (July 2015). DIW Berlin Discussion Paper No. 1496, Available at SSRN: https://ssrn.com/abstract=2639135 or http://dx.doi.org/10.2139/ssrn.2639135

Benjamin Beckers (Contact Author)

German Institute for Economic Research (DIW Berlin) ( email )

Mohrenstraße 58
Berlin, 10117
Germany

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