evidence: And the Derry & Strabane council area has had by far the highest growth in real output per hour (OPH) in that time, rising by 65.9 per cent - the most of any single local authority in the UK. [...] An important factor in Derry’s rising productivity is the presence of a City Deal, a bespoke package of funding and decision-making powers agreed between it and central government, aimed at helping to create new jobs, harness additional investment and accelerate economic growth. [...] Yet the region’s overall productivity levels remain the lowest in the UK - around 17 per cent below the national average.