Asian stock markets rise, shrug off Greek debt woes China's financial markets were closed for a national holiday after a tumble Friday when the Shanghai Composite dived 6.4 percent, taking it 13 percent lower for the week after more than doubling in the past year. Leaders of the eurozone were to hold an emergency summit early Monday seeking agreement between Athens and its international creditors on how to avoid a default and potentially disastrous Greek exit from the euro. "While the question of whether Greece stays in the Euro looms as a significant event in economic history, potentially impacting the lives of many people, it seems the broader international markets have concluded that it's a question that's unlikely to have much relevance for them," Ric Spooner, chief strategist for CMC Markets, said in a commentary. Brent crude, a benchmark for international oil used by many U.S.