Comparative efficiencies of specialty coffee retailers from the perspectives of socially responsible global sourcing

Abstract

Purpose

The purpose of this paper is to illuminate light on the assessment of operating efficiency of specialty coffee retailers from the perspective of socially responsible global sourcing. This paper evaluates the impact of socially responsible sourcing on the operating efficiencies of specialty coffee retailers before and after implementing fair‐trade practices and compares the operating efficiencies of fair‐trade coffee retailers to those of non‐fair‐trade coffee retailers.

Design/methodology/approach

The paper proposes data envelopment analysis (DEA) to measure the comparative efficiency of seven specialty coffee retailers, relative to prior periods and their key competitors. It develops the Charnes‐Cooper‐Rhodes (CCR) model that is designed to derive weights without their being fixed in advance. The CCR version of DEA is adopted to assess the impact of the coffee retailers' policy initiatives (i.e. fair‐trade practices) on their efficiency and measure the change over time (i.e. before and after fair‐trade practices) efficiency of the coffee retailers. As a post hoc DEA analysis, it also performs non‐parametric rank sum statistical tests for any discernable group differences between fair‐trade coffee retailers and non‐fair‐trade coffee retailers.

Findings

The study found that a group of coffee retailers committed to socially responsible sourcing (i.e. fair‐trade) practices tended to perform significantly better than the group which has yet to commit socially responsible sourcing practices with a concern over increased purchasing price. Also, it was found that a premium purchasing price paid to fair‐trade coffee beans did not undermine the coffee retailer's comparative operating efficiency despite its adverse impact on purchasing cost. In other words, a cost increase resulting from socially responsible business conducts might have been offset by the revenue increase resulting from favorable brand recognition attached to social responsibility.

Originality/value

This study is the first attempt to assess the impact of socially responsible sourcing practices on the multinational firms (MNFs) such as specialty coffee retailers' competitiveness and then investigate whether the MNF's commitment to socially responsible sourcing practices can be developed into its long‐term strategic weapon. In addition, it helps specialty coffee retailers formulate future global sourcing strategies by providing the detailed picture of how socially responsible sourcing can impact their competitiveness.

Citation

Joo, S., Min, H., Kwon, I.G. and Kwon, H. (2010), "Comparative efficiencies of specialty coffee retailers from the perspectives of socially responsible global sourcing", The International Journal of Logistics Management, Vol. 21 No. 3, pp. 490-509. https://doi.org/10.1108/09574091011089826