Refer to the input text as context and select the correct relationship between 'Jamie Dimon' and 'chief executive officer' from the available options.
Options: manufacturer, business division, member of, position held

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.
position held