The paper will attempt to describe and critically analyse efficiencies' regulation in horizontal merger control at both … contribute to the academic discussion by suggesting improvements to the current regulation on efficiencies in horizontal mergers …

We investigate whether the merger announcement dates provided in the Securities Data Corporation (SDC) database, a … commonly used source in mergers and acquisitions (M&A) research, are handled correctly by researchers performing event studies … to measure the wealth effects of mergers. We find that in a non-trivial number of deals, the popular choice of using the …

In this paper, we analyse the final decisions for merger cases prepared by the European Commission (EC) since 1990 and … build a unique subsample for all non-cleared cases. These incorporate all merger notifications which were either withdrawn …

The DOJ and FTC clarify the role of labor market power ("monopsony") in the 2023 draft merger guidelines. The draft … that a stricter threshold may be warranted in labor markets. The post-merger Herfindahl-Hirschman Index (HHI) that defines … monopsony power in the U.S. may warrant an even lower threshold. For example, merger simulations indicate that workers would …

offer a one stop shop solution to farmers. Recent merger activity in this sector (the Monsanto bid to buy Syngenta, the … DuPont and Dow merger deal, ChemChina's bid to buy Syngenta) illustrates its rapid transformation from an already …

induces strictly price-decreasing mergers. Finally, under incomplete information an effcient merger type is to be doomed to …We analyze the effects of structural remedies on merger activity in a Cournot oligopoly when the antitrust agency … applies a consumer surplus standard. Remedies increase the scope for profitable and acceptable mergers, while divestitures to …

the period 1990-2002 to assess the effectiveness of European merger control. The basic idea is to relate announcement and … decision abnormal returns. Under a set of four maintained assumptions, merger control might be interpreted to be effective if … rents accruing due to the increased market power observed around the merger announcement are reversed by the antitrust …