Mortgage banking earnings improved significantly during the third quarter of 2011 on both the production and servicing sides of the business, according to a new analysis by Inside Mortgage Trends. A sample of nine mortgage banking firms showed a combined $2.26 billion in production-related income during the third quarter. That reversed a disastrous $11.97 billion combined loss on production during the second quarter of 2011. The group’s second-quarter results were skewed by Bank of America’s stunning $13.21 billion net loss on production income during...(Includes one data chart)