Other countries currently seem entirely happy with doing nothing about "mercantilist attacks", as it means they can import lots of nice stuff.

When it comes to improving exports, I, or any political guy, is the wrong person to ask. Especially in the short-run, as government-led structural reforms like or industrial policy like improving infrastructure or having a non-insane energy policy takes years or decades to implement. No, you're better off asking those who actually run successful export companies what Greek companies are doing wrong when they fail to export outside the eurozone.

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