That number is (more than) a bit misleading. I don't know where OECD pulls those numbers but it certainly doesn't feel as if Greeks work more than the average european. Shops dont work on sundays, public services are open for only a few hours a day, banks close at 2 etc. Underproductivity is a major issue, most of the work of public services is unnecessary red tape that could be easily automated if the government was willing.

Work hours is not our major problem, it's work ethics that are lacking. Hard work is not compensated, it is in fact frowned upon in the public sector, and this situation has even infiltrated much of the private sector. Absurd regulation and governmental dependencies has stifled competition in all but a few sectors (where it works it works reasonably well, such as telecommunications or banking). Couple that with a hostile investing environment and you have the perfect recipe for disaster.

That said, Greeks in general are industrious and entrepreneurial, but we tend to channel our inventiveness on finding ways to avoid paying taxes. Personally i believed from the start that Greece should have exited the euro in order to revitalize its dormant economy.