Utilize the input text as a context reference, choose the right relationship between Esther Duflo and Massachusetts Institute of Technology from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Abhijit Banerjee and Esther Duflo of the Massachusetts Institute of Technology cite the example of poor Indians, who often say it is hard to resist buying sugary tea, a costly treat that brightens up dark days but is not nutritious.

Answer: employer