American economist Nouriel Roubini has used his account on social media network Twitter to launch an attack on New Democracy, which he accused of lacking credibility because of the way the conservatives handled the Greek economy when they were in power between 2004 and 2009.

“The corrupt (New Democracy) who ramped up fiscal deficits to 15% of GDP & shamlessly lied about it now want to run Greece's government again,” wrote Roubini.

“The Greek fox (New Democracy party) that raided the chicken coop now claims it wants to guard it again. Their credibility is dirtier than mud.”

Roubini claims to have predicted both the collapse of the United States housing market and the worldwide recession which started in 2008, earning him the nickname of “Dr Doom.”