About YAMAMOTO REI
About オペレーションズ・リサーチ
About programming language
About modeling
About risk analysis
About logit model
About hypothesis testing
About enterprise
About economic analysis
About credit
About grading(ranking)
About evaluation criterion
About AIC
About R
About modeling
About grading
About positive analysis
About credit risk assessment
About Profit management
About Other methods of operations research
About 信用リスク
About 分析
About 順序
About ロジットモデル
About 格付け
About モデル構築