If this is so, that compensation per labour outout is more or less the same in Greece and Germany, how can it be that Greek companies can't compete?

Seems to me Greek politicians should ask themselves what they should change in their country to attract and keep succesful companies in their nation.

Why should I choose Greece over say Bulgaria, Poland or India when I choose where to site a new factory manufacturing say, advanced cables, or machinery?

Peak oil is not an energy crisis. It is a liquid fuel crisis.