In the context of the input sentence, determine the relationship between 'Jamie Dimon' and 'JPMorgan Chase'.
Options: employer, distributed by, director/manager, distribution format

How JPMorgan boss Jamie Dimon bucked convention to become a billionaire Life is getting better for middle-class households despite mounting income inequality, thanks to improvements in technology and cars, according to JPMorgan Chase chief executive officer Jamie Dimon.
employer