As mentioned above, deeper structural evidence of increased integration is harder to come by, especially related to specific trade agreements. This is probably because the effects of trade agreements are highly sector-specific, often even firm-specific, and there are always numerous other forces that affect macro statistics.
These prices have also been rising recently, exerting pressure on the costs of generating electricity from coal and gas: in May, emission allowance prices increased by 60 per cent over the previous year, exceeding € 23.