학위논문(석사) - 한국과학기술원 : 금융공학전공, 2005.2, [ vi, 65 p. ]
매입보유초과수익률; 누적초과수익률; 초과수익률; 신용등급변경; 정보효과; information effects; buy and hold abnormal return; cumulated abnormal return; abnormal return; Bond credit rating changes
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