Mark Haefele, Chief Investment Officer at UBS and Alexandra Dimitrijevic, Global Head of Research at S&P Global Ratings joined Joe Cass on this edition of Fixed Income in 15. Discussion focused on the evolution of ESG over the past 18 months, long term credit outlook and views on the digitalization of finance including blockchain and cryptocurrency. There was also time to talk about Mark's prior career as a lecturer at Harvard and Alexandra's experience co-leading the S&P Global Diversity Research Lab.