Utilize the input text as a context reference, choose the right relationship between CD PROJEKT and Warsaw 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.

WIG index is put into equation in order to allow correction of the target for general macroeconomic changes resulting in overall changes of share prices under Warsaw capital market where CD PROJEKT is listed.

Answer: headquarters_location