 Designer Brands Inc. DBI, -2.24 , parent of the DSW Designer Shoe Warehouse and The Shoe Company, posted weaker-than-expected third-quarter earnings on Thursday, and lowered its full-year guidance . The company had net income of 45.2 million, or 65 cents a share, for the quarter, down from 80.2 million, or 1.04 a share, in the year-earlier period. 