In turn, this is only feasible if these statistics are compiled using the same concepts and definitions, and similar methodologies. In view of their importance for policy-making, it may be worthwhile embarking on more intensive coordination among the statisticians involved, particularly those within the euro area and in the other major economic blocs of the world, to minimise the present “asymmetries” in external statistics.
But for real returns to rise further still, other policies need to buttress monetary policy by raising 12 / 13  BIS central bankers' speeches  investment and productivity. 1 For an overview see Deutsche Bundesbank Monthly Report (2016), “Distributional Effects of Monetary Policy”,  September 2016.