Key Asian markets ended mixed, today, even as investors hoped for US and European monetary easing to counter growing economic woes. So Japan's Nikkei 225 index jumped 1.2%; Hong Kong's Hang Seng gained 0.9%; South Korea's KOPSI surged 2.6%; and Singapore's Straits Times index dipped 0.1%. But China's Shanghai Composite index dropped 0.7%. The European markets rose, on monetary easing hopes. So key benchmark indices in the UK, France and Germany were up by between 0.5% and 0.7% in intra-day trade today. Meanwhile, Spain saw borrowing costs rise, today, in a closely-watched debt auction, but topped its target range, selling a total of 2.07 billion euros of government debt, news reports said. A sale of 10-year government bonds produced an average yield of 6.04%, up from 5.74% in a previous sale, news reports said. And UK retail sales rebounded in May from a slump in April as warm weather boosted demand for food, beverages and clothing, the British Retail Consortium said.