"Are newly established institutions capable of shaping actors' strategies and coordinating behavior on a single path? Contrary to punctuated equilibrium analyses, this paper suggests that the constraining capacity of a range of newly established institutions in new European capitalisms is weak and that their very interpretation is subject to contention. Focusing on peak-level tripartism - a formally similar institution whose functioning has varied across national contexts - this paper proposes an actor-centered framework to elucidate the logic and consequences of actors' ongoing strategic maneuvering for the interpretation, enactment, and development of these young institutions. Combining insights of rational choice and historical institutionalism, the paper develops a heuristic model which, by focusing on strategic choices of government offi cials and union leaders, links the varied enactment of tripartism to different power balances that become mutually accepted in the course of their repeated interactions. In offering a set of falsifi able propositions, the paper provides a guideline for building analytical narratives to evaluate empirically this model."

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