Client exposure and alot of Mutual Fund research exposure.
Some of the systems we use are dated, but are in the process of being updated it seems.
Advice to Potential Interns
Mercer has a great friendly culture with many oppurtunites to experience client interaction and investment manager interaction. As an intern, they treat you as a valuable part of the team and look to integrate you as a full member in an effort to hopefully hire if the fit is right.