Exhibit 11 INTERNATIONAL PAPER COMPANY STATEMENT OF COMPUTATION OF PER SHARE EARNINGS (Unaudited) (In millions, except per share amounts) Three Months Ended Six Months Ended June 30, June 30, -------------------- ----------------------- 2003 2002 2003 2002 ------ ------ ------ ------- Earnings before accounting changes $ 88 $ 215 $ 142 $ 280 Cumulative effect of accounting changes - - (10) (1,175) ------ ------ ------ ------- Net earnings (loss) 88 215 132 (895) Effect of dilutive securities - - - - ------ ------ ------ ------- Net earnings (loss) - assuming dilution $ 88 $ 215 $ 132 $ (895) ====== ====== ====== ======= Average common shares outstanding 479.0 482.7 479.0 482.5 Effect of dilutive securities Stock options 1.2 2.0 1.0 2.0 ------ ------ ------ ------- Average common shares outstanding - assuming dilution 480.2 484.7 480.0 484.5 ====== ====== ====== ======= Earnings per common share before accounting changes $ 0.19 $ 0.45 $ 0.30 $ 0.58 Cumulative effect of accounting changes - - (0.02) (2.44) ------ ------ ------ ------- Net earnings (loss) per common share $ 0.19 $ 0.45 $ 0.28 $ (1.86) ====== ====== ====== ======= Net earnings (loss) per common share - assuming dilution $ 0.19 $ 0.45 $ 0.28 $ (1.86) ====== ====== ====== ======= Note: If an amount does not appear in the above table, the security was antidilutive for the period presented. Antidilutive securities included preferred securities of a subsidiary trust for the periods presented. Stock options are antidilutive in periods when net losses are recorded.