Loan applications for mortgages decreased last week as average rates for a 30-year fixed rate mortgage ticked upwards, a weekly report said Wednesday. Loan applications decreased 14.2% in the week ending May 22, according to the Mortgage Bankers Association, who have been conducting the survey since 1990. Over the past four weeks,the index tracking loan applications has fallen by an average of 4.7%, even as the four week moving average for purchases has edged up an 0.5%. The decline was led by an...