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Do Market Segmentation and Preferred Habitat Theories Hold in Japan?: Quantifying Stock and Flow Effects of Bond Purchases

Nao Sudo () and Masaki Tanaka
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Masaki Tanaka: Bank of Japan

No 18-E-16, Bank of Japan Working Paper Series from Bank of Japan

Abstract: While major central banks confronting the global financial crisis conducted government bond purchases on an unprecedented scale, macroeconomists began re-examining carefully the once-accepted wisdom that long-term government bond purchases by the central bank reduce long-term yields. This paper follows this shift in economic thought and examines if the wisdom holds in Japan by estimating a dynamic stochastic general equilibrium model that features imperfect substitutability of bonds with different maturities, due to market segmentation and preferred habitats, using Japan's data from the 1980s to 2017. We focus specifically on the transmission mechanism, to determine which matters most: the size of the bond purchases at each period (flow effects), or the total amount of bonds taken away from the private sectors (stock effects). We find that, (i) Japan's data accords well with market segmentation and preferred habitat theories, which implies that government bond purchases conducted by the Bank of Japan have compressed the term premium, exerting an expansionary effect on economic activity and prices; (ii) the effect of bond purchases has been most pronounced since Quantitative and Qualitative Monetary Easing was introduced, compressing the term premium about 50 to 100 basis points as of the end of 2017; and (iii) the compression of the term premium has been mainly driven by stock effects, which underscores the importance of the amount outstanding of the Bank's government bond holdings in determining the term premium.

Keywords: Monetary Policy; Term Premium; DSGE Model (search for similar items in EconPapers)
JEL-codes: C54 E43 E44 E52 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-cba, nep-his and nep-mac
Date: 2018-10-01
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