The country previously promised it would bring its deficit below 3% by next year.
The World Economic Forum has warned of widening disparities between rich and poor countries.
Greek public sector workers have gone on strike for the second time in a week.
President Nicos Anastasiades says the new changes will boost public confidence in the government.
A huge drop in French business activity meant the euro zone's recession dragged on in March.
Cyprus pleaded for a new loan from Russia on Wednesday to avert a financial meltdown.