SAN FRANCISCO - Yahoo Inc. Chief Executive Jerry Yang has gotten what he wanted: a chance to prove his company is worth more than the $47.5 billion that Microsoft Corp. offered to buy the Internet pioneer.

　　It will be a daunting challenge, as Yang will be pointedly reminded Monday when investors are expected to show how little they think of Yahoo without a takeover bid on the table. Faced with resistance from Yang and the rest of Yahoo's board, Microsoft withdrew its offer over the weekend.

　　Many analysts believe Yahoo's stock price, which had climbed nearly 50 percent since Microsoft's initial offer, will surrender most, if not all, of that gain, leaving the Sunnyvale-based company's market value around $30 billion.

　　Disillusioned shareholders are bound to question whether the rejection of Microsoft's sweetened $33-per-share offer was driven more by emotion and ego than sound business sense.