Ex post or ex ante? On the optimal timing of merger control

Andreea Cosnita-Langlais and Jean-Philippe Tropeano

No 2013-22, EconomiX Working Papers from University of Paris Nanterre, EconomiX

Abstract: We study the optimal timing of merger control by comparing the pre-and post closing enforcement. Mergers have both pro- and anticompetitive effects, and the parties(the agency and the merging firms) veri able information on them is endogenous: it depends on the timing of the merger control, as well as on some investment in evidence production. The ex post enforcement turns out optimal whenever the costs of providing veri able information on both efficiency gains and market power are sufficiently low, regardless of whether the fi rms know ex ante or not their true merger type.

Keywords: merger control; competition policy; evidence production (search for similar items in EconPapers)
JEL-codes: D82 K21 L41 (search for similar items in EconPapers)
Pages: 26 pages
Date: 2013
New Economics Papers: this item is included in nep-com, nep-cta and nep-ind
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:drm:wpaper:2013-22

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