As a consequence, there was a crisis in international confidence in Greece's ability to repay its sovereign debt, as reflected by the rise of the country's borrowing rates (although their slow rise – the 10-year government bond yield only exceeded 7% in April 2010 – coinciding with a large number of negative articles, has led to arguments about the role of international news media in the evolution of the crisis). In order to avert a default (as high borrowing rates effectively prohibited access to the markets), in May 2010 the other Eurozone countries, and the IMF, agreed to a "rescue package" which involved giving Greece an immediate €45 billion in bail-out loans, with more funds to follow, totaling €110 billion. In order to secure the funding, Greece was required to adopt harsh austerity measures to bring its deficit under control. Their implementation will be monitored and evaluated by <answer>the European Commission, the European Central Bank and the IMF</answer>.
What organizations are keeping a watchful eye on how Greece is implementing austerity measures?
the European Commission, the European Central Bank and the IMF