Refer to the input text as context and select the correct relationship between 'Esther Duflo' and 'Massachusetts Institute of Technology' from the available options.
Options: employer, chairperson, legal form, creator

As a result, note Abhijit Banerjee and Esther Duflo of the Massachusetts Institute of Technology in their book , “Poor Economics”, published in 2004, it takes “that much more skill, willpower and commitment” for the poor to get ahead.
employer