The first thing to say is this is not an area that lends itself to international treaties. Prudent financial behaviour is not something that can easily be reduced to legislative provisions. For a variety of reasons, the most promising approach appears to be the development of standards of best practice, whose implementation is encouraged by market forces, and effectively monitored by impartial assessment.
And they would do nothing to address the fundamental weaknesses in the Greek economy. In short, the path of easy answers leads to stagnation, decline and an over-burdening of the young and future generations. From what I see today, I trust that the Greek people know which path they need to take.