Asian stocks ended mixed on Friday as lackluster cues from Wall Street overnight and comments by U.S. Federal Reserve Chair Janet Yellen on U.S. economic outlook, inflation and prospects of an interest-rate hike at some point this year kept investors’ risk appetite in check, heading into the weekend. Japanese shares finished sharply higher after Prime Minister Shinzo Abe set out three new goals for “Abenomics” targeting a 20 percent increase in gross domestic product to 600 trillion yen.