A panel of fund managers have given their tips on where to find pockets of value in the market — and what assets investors should avoid. The cryptocurrency bitcoin soon popped up in the discussion. "Frankly, we will never invest ever in cryptocurrencies ... For us it's very clear that bitcoin is a bubble," Kirill Dmitriev, chief executive of Russia's sovereign wealth fund, RDIF, told CNBC at the World Economic Forum (WEF) in Davos, Switzerland on Tuesday. "Frankly, in Russia lots of people...