世界银行：反垄断执法与企业绩效：来自哥伦比亚食糖市场的证据（英文版）

This paper examines the impact of two interventions by Colombia's competition authority to enforce competition in the sugar market on firm performance in downstream sectors. Using an exogenous identification strategy, the analysis finds that following the competition authority’s intervention against collusion in 2015, downstream firms expanded production but did not increase productivity or profitability margins, consistent with the removal of supply constraints imposed by cartelization.