Exhibit 11.1 GENESEE & WYOMING INC. AND SUBSIDIARIES COMPUTATION OF EARNINGS PER COMMON SHARE (in thousands, except per share amounts) For the years ended December 31, 1999 1998 1997 ---- ---- ---- BASIC EARNINGS PER SHARE CALCULATION: Net Income $12,533 $11,434 $ 7,998 Weighted average number of shares of common stock 4,491 5,187 5,250 Earnings per share - basic $ 2.79 $ 2.20 $ 1.52 DILUTED EARNINGS PER SHARE CALCULATION: Net Income $12,533 $11,434 $ 7,998 Weighted average number of shares of common stock and common stock equivalents outstanding: Weighted average number of shares of common stock 4,491 5,187 5,250 Common stock equivalents applicable to warrants -- -- 42 Common stock equivalents issuable under stock option plans 49 42 155 Weighted average number of shares of common stock and common stock equivalents - diluted 4,540 5,229 5,447 Earnings per share - diluted $ 2.76 $ 2.19 $ 1.47