Take context from the input text and decide on the accurate relationship between 'Syriza' and 'Athens' from the options provided.
Options: position held, headquarters location, creator, distribution format

Nobel prize winning economist Paul Krugman, a vocal supporter of Athens in its long-running bailout saga, said Sunday that he "may have overestimated the competence of the Greek government," suggesting Syriza staged the showdown without having a Plan B.
headquarters location