U.S. Treasury Secretary Janet Yellen is set to head to Asia next week. One of the topics she will be promoting is a potential cap on Russian oil prices. The Russian oil price cap was one of the main items on the G7 agenda during last month’s meeting of the world’s biggest economies... Yellen will participate in the G20 meeting of finance ministers in Indonesia and also travel to Tokyo and Seoul to make a case for an oil price cap. China is not on her itinerary... The Prime Minister of Japan, Fumio Kishida, suggested earlier this month that the...