|Merger control: EU Merger Regulation will not stop application of UK merger control regime
||Increased merger control scrutiny: where EUMR applies to a transaction, the UK regime could also apply in parallel.
|Competition rules: scope for duplicative investigations by both CMA and European Commission (current EU law avoids this)
||Increased regulatory scrutiny: multiple investigations into same issue where there is an effect of trade in the UK and the EU.
|European Courts jurisprudence falls away, leaving case-law gap on interpretation of UK competition laws
||Uncertainty over application of EU competition case law in UK cases.
|Reduced jurisdiction of CAT and High Court to accept follow-on damages actions re EU competition decisions
||Current favourable jurisdiction for follow-on damages actions could fall away.
|State aid restrictions may no longer apply
||Potentially more Government support is possible post-Brexit as State aid laws will not apply to UK projects.