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Buyer-Size Discounts and Inflation Dynamics

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  • Mayumi Ojima
  • Junnosuke Shino
  • Kozo Ueda

Abstract

This paper considers the macroeconomic effects of retailers’ market concentration and buyer-size discounts on inflation dynamics. During Japan’s “lost decades,” large retailers enhanced their market power, leading to increased exploitation of buyer-size discounts in procuring goods. We incorporate this effect into an otherwise standard New- Keynesian model. Calibrating to the Japanese economy during the lost decades, we find that despite a reduction in procurement cost, strengthened buyer-size discounts did not cause deflation; rather, they caused inflation of 0.1% annually. This arose from an increase in the real wage due to the expansion of production.

Suggested Citation

  • Mayumi Ojima & Junnosuke Shino & Kozo Ueda, 2014. "Buyer-Size Discounts and Inflation Dynamics," CAMA Working Papers 2014-04, Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University.
  • Handle: RePEc:een:camaaa:2014-04
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    File URL: https://cama.crawford.anu.edu.au/sites/default/files/publication/cama_crawford_anu_edu_au/2014-01/4_2014_ojima_shino_ueda.pdf
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