Den nederlandske forskeren Rem Korteweg ved CER mener det kreves europeiske svar på fire store kriser om EU skal klare å holde sammen: Hellas-krisen, flyktningkrisen, Russland-Ukraina-konflikten og faren for at Storbritannia melder seg ut av EU.
Camino Mortera from the Centre for European Reform told us: "There is a sense of people getting scared about what is happening in Greece happening in Spain as well. People see the banks closing and they think that Podemos will do the same in Spain."
"What I find worrying is that so few political figures in Germany seem troubled by the spectacle of Greece being humiliated in this way. The Germans have somehow turned everything around and think that they are the victims," said Simon Tilford of the CER.
"Greece's third bailout is bound to fail for the same reasons that the last two programmes did," said Christian Odendahl, chief economist at the Centre for European Reform think-tank. "A government who... claimed to be ending austerity will now be forced to do the opposite."