Banks and thrifts continued to generate very strong earnings from their mortgage banking operations during the first quarter of 2013, despite a slowdown in originations and loan sales. Banks and thrifts reported a total of $7.704 billion in mortgage banking income during the first three months of 2013, according to a new Inside Mortgage Trends analysis of recently released call-report data. That was up 15.5 percent from the previous quarter, and the early 2013 earnings fell just ... [Includes one data chart]