The mortgage market has gradually shifted upstream since the collapse of the housing market and the painstakingly slow recovery, with big-ticket mortgages capturing a growing share of new originations, according to a new Inside Mortgage Finance analysis. Mortgages exceeding the traditional conventional loan limit of $417,000 accounted for 19.8 percent of new originations in 2013, up from 16.2 percent during the previous year. And with overall mortgage-production volume slumping over the second half of 2013, the jumbo share of new originations rose to 23.3 percent in the fourth quarter. The secondary-market agencies accounted...[Includes three data charts]