• Empirical evidence on merger outcomes reveals tension between immediate market reactions and long‑run value; acquirers often show post‑merger performance losses, with heterogeneity driven by deal type and financing forms [1], [16], and additional insights from cross-border tax contexts [14], and takeover value sources [20].

• Demand-side analyses in differentiated product markets dominate early papers, using Logit demand models and robust welfare tests to gauge merger policy effects and consumer welfare, signaling policy implications beyond simple market concentration [2], [7], [18].

• Public-interest oriented merger analysis relies on probabilistic models to quantify regulatory decisions and the role of information asymmetry, with probit analyses of Merger Commission reports and duopoly regulation frameworks [3], [5], and related resistance frameworks [10].

• Restructuring and strategic changes are central mechanisms through which mergers alter firm scope, R&D intensity, and executive governance; diversification strategies and synergy vs. restructuring debates frame post-merger value [4], [20], [13].

• Coordination mechanisms—territory/branded commitments, distribution channels, dealer interdependence, and strategic alliances—emerge as mediators of merger outcomes, highlighting credible commitments and channel design as important in post-merger performance [6], [9], [15].