The EU has a long track record of pushing for more social cohesion and the debate on a new round of cohesion policies is ongoing. Hopefully it will result in a cohesive set of guidelines for the 2014 - 2020 period. I'm afraid the debate is too academic for me to follow, at least not all of it.
While poor social cohesion1 intuitively points to economic stagnation, I'm not sure if there's a strong correlation for the reverse. Europe is relatively free of obvious social conflicts, but at the same time its economic policies are currently under much scrutiny2.
As a first step, I'm trying to understand if the EU's past efforts towards more social cohesion have proven to be significant in terms of long term economic growth.
1 Severe conflicts between ethnic or religious groups, for example.
2 Just in case, the European sovereign-debt crisis is what I'm talking about there.