While speaking at the Economist conference today, Colin Ellis of Moody's Investors Service opened a window with asterisks for the upgrade of the Greek economy to investment grade by Moody's rating agency.

Using careful language and avoiding to announce or commit to what the international rating agency, which is the only one that maintains Greece's credit rating at non-investment grade, said, "On September 13, when the new rating is scheduled, things will be better."

The Moody's executive referred to the indicators and referred to the high level of wealth in Greece, but added that although many reforms have been made, there are still several that are lagging behind, such as the administration of justice, adding, however, that the will to move forward with reforms in Greece is there.

Furthermore, he stressed that the country does not face a credit risk; however, to move up the rating scale and get the Baa1 rating, it still needs some work to do.