Do Group Decision Rules Affect Trust? A Laboratory Experiment on Group Decision Rules and Trust

Abstract

Enhanced participation has been prescribed as the way forward for improving democratic decision making while generating positive attributes like trust. Yet we do not know the extent to which rules affect the outcome of decision making. This article investigates how different group decision rules affect group trust by testing three ideal types of decision rules (i.e., a Unilateral rule, a Representative rule and a ‘Non‐rule’) in a laboratory experiment. The article shows significant differences between the three decision rules on trust after deliberation. Interestingly, however, it finds that the Representative rule yields more trust than the Non‐rule and also significantly more trust than the Unilateral rule, when analysing the results at group level. These findings challenge the theoretical understanding by, for example, deliberative normative theorists that more inclusive, consensual and non‐hierarchical decision‐making procedures enhance trust vis‐à‐vis other more hierarchical decision‐making procedures.