What should you do when an investment suddenly becomes hot or cold? How should investors think about sectors that fall in and out of favor? Should you be looking at countries like India and Japan or technologies like AI? Jan van Eck, CEO of Van Eck Funds, which oversees $75 billion in ETFs, speaks with Barry Ritholtz about how to identify when an asset class falls into or out of favor.See omnystudio.com/listener for privacy information.