Earnouts and contractual governance in Brazil: a typology by institutional effectiveness

Abstract

Purpose: To examine the conditions under which earnouts operate as effective contractual-governance mechanisms in Brazil and those under which they tend to generate fragility, disputes, or opportunism.

Originality/value: The article shifts the debate from contingent pricing to the economic realizability of earnouts and proposes an institutional-effectiveness typology comprising robust, fragile, litigious, and opportunistic configurations.

Design/method/approach: This theoretical-documentary and exploratory study integrates information economics, incomplete contracts, post-acquisition governance, and real options with secondary institutional evidence from the Brazilian National Council of Justice and arbitral institutions. The indicators are used as proxies for general enforceability conditions, without causal inference about individual contracts.

Findings: The analysis identifies relevant heterogeneity in enforcement, vulnerability of discretionary performance metrics, and risks created by post-acquisition control asymmetry. Economic realizability depends on consistency among a verifiable metric, the control structure, and an enforcement mechanism compatible with the value at stake. The typology offers a diagnostic framework for contractual safeguards and for ex-ante assessment of execution risks. The findings reinforce that formally similar clauses may have different economic realizability depending on the institutional environment and post-acquisition governance. The proposal remains exploratory, has diagnostic rather than confirmatory scope, and requires future empirical validation with contracts, arbitral awards, court decisions, and market evidence.