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This article deals with the question whether arbitration institutions should introduce a consolidation provision in their respective rules, and if so, under what conditions consolidation should be ordered. It stresses the general advantages and potential disadvantages which consolidation may have. It further investigates whether the parties’ interests regarding consolidation are sufficiently respected in the absence of an express consolidation rule. In this regard, it argues that interpretation of arbitration agreements can have a detrimental outcome, and therefore, the introduction of a consolidation provision in institutional rules is recommended. The article goes on to compare various consolidation provisions of different arbitration institutions and examines whether these rules could serve as a model for those arbitration institutions, which have not yet adopted a consolidation provision in their arbitration rules.