To the extent that some aspiring entrepreneurs entered the tail end of a short-term boomlet, there was bound to be some disappointment.
To give a concrete figure (despite all caveats that apply to the model underlying the simulations), let me mention that a recent study estimates that financial integration of the European bond and equity markets would result in additional growth of around 1% over a ten-year period.2 It is worth noting that 1% of EU GDP amounts to around EUR 100 billion!