In the United States, judicial panels are non-hierarchical, so an Associate Judge has the same responsibilities with respect to cases as the Chief Judge.
An Associate Judge usually has fewer or different administrative responsibilities than the Chief. Famously, on the Supreme Court of the United States, the most junior Associate Justice (currently Justice Samuel Alito), has the task of answering the door when the Justices are in private conference.
In New Zealand, Associate Judges of the High Court of New Zealand supervise preliminary processes in most civil proceedings. Associate Judges have jurisdiction to deal with such matters as: summary judgment applications, company liquidations, bankruptcy proceedings, and some other types of civil proceedings.[1] In the New Zealand legal system, Associate Judges were formerly known as Masters.