The European Central Bank is poised to announce a plan on Thursday to buy government bonds, resorting to its last big policy option for breathing life into the flagging euro zone economy.

SYRIZA does not recognize memorandums, said SYRIZA finance shadow minister Giannis Dragasakis, on Tuesday night, speaking at the Economist Conference, also making it clear that "the Troika will not tell us what to do," and essentially signaling that when forming a government, SYRIZA from the day after the elections, the Troika will not even come to Athens to complete the assessment of the Greek fiscal adjustment program.