On Interest Rate Policy and Asset Bubbles

Franklin Allen, Gadi Barlevy and Douglas Gale ()

No WP-2017-16, Working Paper Series from Federal Reserve Bank of Chicago

Abstract: In a provocative paper, Gal (2014) showed that a policymaker who raises interest rates to rein in a potential bubble will only make a bubble bigger if one exists. This poses a challenge to advocates of lean-against-the-wind policies that call for raising interest rates to mitigate potential bubbles. In this paper, we argue there are situations in which the lean-against-the wind view is justified. First, we argue Gal?s framework abstracts from the possibility that a policymaker who raises rates will crowd out resources that would have otherwise been spent on the bubble. Once we modify Gal?s model to allow for this possibility, policymakers can intervene in ways that raise interest rates and dampen bubbles. However, there is no reason policymakers should intervene to dampen the bubble in this case, since the bubble that arises in Gal?s setup is not one that society would be better off without. We then further modify Gal?s model to generate the type of credit-driven bubbles that alarm policymakers, and argue there may be justification for intervention in that case.

Keywords: Interest rate; monetary policy; asset bubbles (search for similar items in EconPapers)
JEL-codes: E43 E52 (search for similar items in EconPapers)
Pages: 66 pages
Date: 2017-09-17
New Economics Papers: this item is included in nep-mac and nep-mon
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (13)

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Working Paper: On Interest Rate Policy and Asset Bubbles (2017)
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