Utilize the input text as a context reference, choose the right relationship between Sciences Po and Paris 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.

Philippe Martin, a professor of economics at Sciences Po in Paris , together with other economists, found in a study of French exporters that: "...only high performers partially price-to-market and partially absorb exchange rate movements in their mark-ups.

Answer: headquarters_location