Edmunds.com just released its 4th quarter 2013 Used Car Market Report and found that used car prices fell year-over-year and could fall another 2% during 2014. That will be coming from a glut of used vehicles entering the market primarily from lease returns. The trend will cause a rippling effect influencing shoppers of both new and used cars. Along with used car values declining, Edmunds expects to see a rise in monthly payments of new car leases.