All 155 lawmakers in the conservative-socialist coalition backed the motion, while 131 opposition lawmakers in the 300-seat parliament rejected it and two said they were voting neither way.
Conservative Prime Minister Antonis Samaras sought confirmation of his economic reform policies halfway through his four-year term amid opposition calls for snap elections, insisting that the prospect of renewed political risk could spook international markets as the bailed-out country tries to exit a punishing six-year recession.
However, the coalition will still need opposition support so far unforthcoming to avoid a stalemate and snap election in February when parliament chooses the country's new president, with any candidate requiring a minimum 180 votes to be elected.
During the three-day debate, even independent lawmakers strongly criticized Samaras' government, and the leader of a small center-left party that took part in the coalition for nearly a year argued yesterday that there was a "vital need" for the government to change.
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In exchange for the emergency loans from its European partners and the International Monetary Fund, Greece imposed tough income cuts and repeatedly increased taxes, in an austerity drive that worsened a deep recession and led to about a million job losses.
Syriza leader Alexis Tsipras insisted in parliament yesterday on the need for a sweeping solution to the country's debt problems.