Utilize the input text as a context reference, choose the right relationship between Luigi Zingales and University of Chicago 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.

Some time ago University of Chicago economist Luigi Zingales wrote about a "horrifying joke" he heard from his colleagues that asked, "What&apos;s the difference between Japan and Greece?"
employer