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Unit pricing for multiple product sizes: identifying moderators and mediators of consumer evaluations

Miyuri Shirai (Faculty of Business and Commerce, Keio University, Tokyo, Japan)
Takuya Satomura (Faculty of Business and Commerce, Keio University, Tokyo, Japan)

European Journal of Marketing

ISSN: 0309-0566

Article publication date: 8 January 2021

Issue publication date: 11 May 2021

348

Abstract

Purpose

This paper aims to investigate the underlying process by which a brand’s unit pricing for multiple package sizes influences consumer evaluations by incorporating several mediators and moderators. Two-unit pricing tactics were examined: quantity discounts and surcharges.

Design/methodology/approach

Two online experiments were conducted to test the hypotheses. Study 1 examined the mediating role of consumers’ inferred motive for sellers in setting quantity discounts or surcharges in the relationship between the pricing tactics and consumer evaluations. Study 2 incorporated affect as a mediator, and price consciousness and unit price usage as moderators in this relationship.

Findings

The mediating role of inferred motive is supported. Motive is related to the sales volume. Furthermore, this mediation effect is more potent when consumers have stronger quantity discount belief. Further, the mediating role of affect is supported. It is more salient when consumers are frequent users of unit prices.

Research limitations/implications

This study compared two pricing tactics and did not include a control condition. The first digit of the unit price for the small package size was different between the pricing tactics.

Practical implications

When applying quantity surcharges to products, it is essential to provide additional information to consumers to preclude the possibility of negative evaluations.

Originality/value

This study makes a significant contribution by offering a deeper understanding of consumer responses to the pricing tactics. In particular, it reveals that pricing tactics trigger both cognitive and affective responses, which then influence evaluations of the pricing tactics. This elicited cognition is associated with deduction about sellers’ brand-size pricing behavior.

Keywords

Acknowledgements

This work was supported by JSPS KAKENHI Grant Numbers JP15K02723 and Keio University Academic Development Funds.

Citation

Shirai, M. and Satomura, T. (2021), "Unit pricing for multiple product sizes: identifying moderators and mediators of consumer evaluations", European Journal of Marketing, Vol. 55 No. 5, pp. 1539-1566. https://doi.org/10.1108/EJM-08-2018-0560

Publisher

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Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

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