What is the relationship between Luigi Zingales and University of Chicago in the context of the input sentence. Choose an answer from: 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