sentences:  Real gross domestic product had grown by 26.8% over 1979–89 in the United Kingdom as against 24.3% for the EC-12 average.Measured by total factor productivity, labour, and capital, British productivity growth between 1979 and 1993 compared favourably with the OECD average.However under Thatcherite management the macro-economy was unstable, even by the standards of the Keynesian era of stop-go.