London-based fixed income portfolio manager Mark Brett is retiring at the end of 2020. Here he distills the perspective gained over his four-decade career into practical guidance for bond investors embarking on what he sees as a new phase for the markets. For industry-leading insights, support tools and more, subscribe to Capital Ideas at getcapitalideas.com. The Capital Ideas website is not intended for use outside the U.S. In Canada visit capitalgroup.com/ca for Capital Group insights. Mark Brett is a fixed income portfolio manager with 40 years of investment experience. He is a member of the CFA Institute U.K. and is a fellow of the Chartered Institute for Securities and Investment.