From 2001 to 2009, further investigations were begun at the site by a team under the direction of Dr. Marilyn Masson from the State University New York at Albany, Carlos Peraza Lope of INAH, and Timothy S. Hare of Morehead State University. This "Economic Foundations of Mayapan" (PEMY) Project performed mapping, surface survey and collection, test-pitting, and horizontal excavation across the city. Major findings of this project include the identification of diverse occupational specialization among the city's commoners, who worked as craftsmen, conscripted military personnel, farmers, and domestic servants. Great variation is now recognized in the types of work performed by commoners of different households and their degrees of affluence. This project has also identified a probable major market plaza in Square K (between the site center and major north gate D); Richard Terry, Bruce Dahlin, and Daniel Bair have analyzed soil samples from this location to test the function of this locality. In 2008 and 2009, the PEMY project focused excavations on an outlying ceremonial group by the far eastern city gate (Gate H), known as "Itzmal Ch'en," as part of its study of the economic and social links between governing elites and distant neighborhoods within the city.