tie-up

Senator Elizabeth Warren has called for any Paramount-Warner Brother tie-up to be blocked, as a "dangerous concentration of power".

This tie-up brings together two of the most colourful and sometimes controversial figures in tech.

Negotiations between the two collapsed in February after the firms were unable to agree on a multi-billion-dollar tie-up.

In February, talks between Nissan and its larger rival Honda collapsed after the firms failed to agree on a multi-billion-dollar tie-up.

Allowing food and animal products to be traded more freely is being discussed, as is cooperation on energy with a possible tie-up between the UK and the EU's emission trading schemes.