The asset quality issues of lenders that have bugged the earnings of mortgage insurer Genworth in Australia are starting to improve, while new business levels are also improving.Genworth reported yesterday that net operating earnings in Australia for the September 2013 quarter were US$55 million, up from US$44 million in the September 2012 quarter.It said the loss ratio in the quarter was 35 per cent, down 12 percentage points over three months and down 19 percentage points over the year.Genworth said total delinquencies were down one per cent, "as higher new delinquencies were more than offset by seasonally higher cures."New business levels increased 13 per cent over the quarter and seven per cent over the year. This, the company said, was the result of "a larger origination market."