So Wales had been outperforming the UK on private sector job creation during a period of relatively strong economic performance, which is at odds with the theories of crowding out.
Felly roedd Cymru’n perfformio’n well na’r DU o ran creu swyddi yn y sector preifat yn ystod cyfnod o berfformiad economaidd cymharol gryf, sy’n groes i’r damcaniaethau niweidio cyflogaeth.