Earnings from production-related activity and servicing fell modestly in the fourth quarter, according to a new Inside Mortgage Trends analysis of earnings reports filed by a dozen top publicly traded companies. The 12 lenders reported a combined $1.125 billion in income from loan originations and secondary market sales during the fourth quarter. That was down 9.0 percent from the previous period. Some of the earnings decline resulted from a slowdown ... [Includes one data chart]