\"One of the basic assumptions of debt is that borrowers pay interest to lenders. That idea has been upended in the global bond market. There's now about $13 trillion in negative-yielding bonds. Investors who hold them to maturity will end up getting less money than they paid for them, even including interest.\" Required: Explain the phenomenon of Negative yield to maturity. What are the causes and implications of negative yield to maturity for the nancial markets? [Use the yield curve to support your argument)