Sustainability certifications and product preference

Purpose The aim of this study is to investigate the influence of sustainability certifications on consumer preferences. The study investigates whether product certifications have a significant influence on consumer preferences and examines which certificate groups work best from a marketer's perspective for matching the different consumer preferences. Design/methodology/approach The study uses a quantitative survey approach, based on a conjoint analysis carried out in the Brazilian juice market. Findings The results of 210 respondents indicate that the certifications chosen generally increase the evaluation of products. The effects, however, differ significantly between the three segments identified, especially between the two most important ones that have a combined market share of almost 90%. Our results show that demographic differences between the clusters are only marginal, as are the specific certification preferences, with a small advantage for organic certification. Research limitations/implications The certificates chosen serve as an example that represents the various categories. The utility of similar certificates of the same category might be different. The scope of the research is also limited to the market for ready-to-drink juice. Practical implications Using a dual targeting strategy, this study makes relevant recommendations for managing product certification. On the one hand, managers should consider a highly priced, certified product and, on the other, a low priced, uncertified product for satisfying identified demands. Decisions with regard to certification differentiation should mostly rely on the specific costs of the process because of limited consumer differentiation. Originality/value This study contributes to the literature on the influence that product certification has on consumer preferences by adding to the matter of certificate choice, especially from a marketer's perspective. Resolving this issue is important for facilitating the choice of those certificates that contribute most toward increasing consumer preference. Little research has been conducted into different certification groups and categories or the joint appearance of their different labels. Most of the research being carried out is aimed at the food market in developed countries, particularly in North America and Europe. Research in an emerging economy, therefore, introduces new scientific insights.