The Market Microstructure of Central Bank Bond Purchases

Kathi Schlepper, Heiko Hofer, Ryan Riordan and Andreas Schrimpf

Journal of Financial and Quantitative Analysis, 2020, vol. 55, issue 1, 193-221

Abstract: We study quantitative easing (QE) policies from a microstructure perspective, drawing on intraday transaction-level data for German bonds (purchased under the Eurosystem’s QE program). An initial analysis of purchase decisions reveals that portfolio managers consider liquidity and the scarcity of securities in repo markets. Suggestive of significant flow effects, we detect price impacts of purchases at high and low frequencies. We find the impact on market liquidity and functioning to be ambiguous. A higher purchase volume lowers transaction costs but has an adverse impact on order-book depth. The price impact varies with market conditions and is higher for more illiquid bonds.

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:cup:jfinqa:v:55:y:2020:i:1:p:193-221_6

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