EXHIBIT 11 JONES APPAREL GROUP, INC. Computation of Basic and Diluted Earnings per Share (In thousands except per share amounts) For the Quarter Ended For the Six Months Ended --------------------- ------------------------ June 28, June 29, June 28, June 29, 1998 1997<F1> 1998 1997<F1> ------- ------- ------- ------- Basic Earnings per Share: - ------------------------- Net income.................... $25,038 $19,280 $63,348 $48,819 ======== ======= ======= ======= Weighted average number of shares outstanding............ 100,841 103,934 100,788 103,999 ======== ======= ======= ======= Basic earnings per share...... $0.25 $0.19 $0.63 $0.47 ======== ======= ======= ======= Diluted Earnings per Share: - --------------------------- Net income.................... $25,038 $19,280 $63,348 $48,819 ======== ======= ======= ======= Weighted average number of shares outstanding............ 100,841 103,934 100,788 103,999 Assumed issuances under exercise of stock options..... 4,244 8,339 3,919 3,958 -------- ------- ------- ------- 105,085 108,029 104,707 107,957 ======== ======= ======= ======= Diluted earnings per share.... $0.24 $0.18 $0.61 $0.45 ======== ======= ======= ======= <F1> Adjusted for 2-for-1 stock split effective June 28, 1998.