Equity markets rallied in Europe and the US, and commodity prices rose as the Greek parliament approved a new property tax, a key condition of gaining more financial aid for the debt-laden country.
The new tax passed 155 votes to 142 against in the 300-member parliament, paving the way for international inspectors to return to Athens to judge Greece's progress in austerity measures. The nation needs to get an 8 billion euro instalment by mid-October to avoid default.
Greeks will pay the tax via their electricity bills, seen as giving authorities greater leverage than through the conventional and loop-hole ridden tax system.
Greek Prime Minister George Papandreou's government also plans to deepen wage cuts and trim pensions further, while reducing the tax-free threshold for income to 5,000 euros. German Chancellor Angela Merkel said her nation would help Greece meet the terms of the bailout.
The Stoxx Europe 600 Index rose 4.4 per cent to 229.91, the biggest advance in 16 months. Germany's DAX 30 and France's CAC 40 both rallied more than 5 per cent, while in the UK, the FTSE 100 gained 4 per cent.