Utilize the input text as a context reference, choose the right relationship between ESADE and Barcelona 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.

Anna Laborda of ESADE business school in Barcelona agrees that the jobs being created in Spain are "very unstable" ones.

Answer: headquarters_location