An attorney representing Ropes & Gray insisted at a Wednesday hearing in New York that the firm fired a 63-year-old female partner in the fall of 2010 because it no longer made economic sense to keep her, not because it was discriminating or retaliating against her.

Based on that argument, Proskauer Rose labor and employment partner Bettina Plevan attempted to persuade U.S. District Judge John Koeltl to dismiss on summary judgment a lawsuit brought against Ropes in March 2011 by former firm partner Patricia Martone.