Which of these is NOT demonstrated by the available data?
1) Government-financed R&D as a percentage of GDP is lower in the UK than the average for the OECD.
2) Large firms (250+ employees) have higher labour productivity in almost all countries.
3) Management practice scores for businesses in Wales are - on average - lower than in other regions of the UK.
4) The UK economy returned to its trend growth rate of labour productivity after the global financial crisis.