Retailer Market Concentration, Buyer-Size Discounts and Inflation Dynamics

Mayumi Ojima, Junnosuke Shino, Kozo Ueda

Research output: Contribution to journalArticle

1 Citation (Scopus)


This study considers the macroeconomic effects of retailer market concentration and buyer-size discounts on inflation dynamics. During Japan's "lost decades", large retailers enhanced their market power, thus increasing the exploitation of buyer-size discounts in the procurement of goods. We incorporate this effect into an otherwise standard New Keynesian model. Calibrating to the Japanese economy during the lost decades, we find that these developments led to a deflation of approximately 0.1% annually.

Original languageEnglish
JournalJapanese Economic Review
Publication statusAccepted/In press - 2017

ASJC Scopus subject areas

  • Economics and Econometrics

Fingerprint Dive into the research topics of 'Retailer Market Concentration, Buyer-Size Discounts and Inflation Dynamics'. Together they form a unique fingerprint.

  • Cite this