The Greek state will suffer a loss of between 8 and 12.5 billion euros from the implementation of a Bank of Greece's plan to set up a "bad bank" to absorb Greek banks' non-performing loans, a survey on "Lessons from Financial Assistance to Greece" conducted under the guideance of Joaquin Almunia, former EU Economic Affairs Commissioner for the European Stability Mechanism (ESM), said on Thursday.

The Greek economy's state "is a bit more positive" than expected two months ago, European Stability Mechanism (ESM) chief Klaus Regling said at a press conference after the Eurogroup meeting on Monday.

The euro zone’s rescue fund, the European Stability Mechanism (ESM), agreed on Monday to allow Greece to pay back early part of the loans to the International Monetary Fund worth around 2.7 billion euros ($3.0 billion), it said in a statement.