decision under certainty decision under risk decision under Slides: 38 Download presentation 決策問題類型 • 確定性問題 (decision under certainty) • 風險性問題 (decision under risk) • 不確定性問題 (decision under uncertainty) 不確定性下決策法則 • 樂觀(大中取大)法則(optimistic criterion) • 悲觀(小中取大)法則(pessimistic criterion) • 賀威茲法則(Hurwiez criterion) • 拉氏法則(La. Place criterion) 遊戲理論(game theory) • • 針對2個或以上決策者競爭的決策問題 償付表須已知 每個player有2項以上的方案 攻擊者(offensive player) 防守者(defensive player) 純粹策略(pure strategy) 混合策略(mixed strategy) 優勢策略(dominant strategies) 混合策略 Strategy B dominants Strategy A can be eliminated Strategy 2 dominants Strategy 1 can be eliminated 決策樹 (Decision Tree) • 範例 決策樹 (Decision Tree) 抽樣資訊的期望價值 (Expected Value of Sampling Information, EVSI) • 條件機率(Conditional Probability) • 聯合機率(Joint Probability) • 事前機率(Prior Probability) • 事後機率(Posterior Probability) • 調查可靠度(Reliability) ER=15. 58*0. 435+11. 8*0. 565=13. 46 EVSI=13. 46 -12. 85 = 0. 61 15. 58 0. 435 13. 46 0. 565 11. 8 15. 58 Test 13. 46 0. 435 0. 565 11. 8 Test No Test 12. 85 Homework of Ch 8 • T-F: 1, 2, 3, 5, 6, 7, 10 • Multiple Choice: 12, 13, 14, 15, 17, 18, 19, 20 • Problem: 8 -1, 8 -18, 8 -21, 8 -22, 8 -28, 8 -29 Straight line method of depreciationMarket risk credit risk operational riskFinancial decisionNo decision snap decision responsible decisionMaking predictions with modals and adverbs of certaintyDescartes certaintyCertainty vs provisionalismIncrease pipeline certaintyAdjusted discount rate formulaCertainty examplesModal verb indicates certaintyAsas certaintyCombining modals with phrasal modalsAgreement and certainty matrixNational will registerDegrees of possibilityDegrees of possibilityCertainty will search costAdverbs of certaintyDescartes certaintyCertainty factor formulaGrade certainty of evidenceDegrees of certainty present timeExpress uncertaintyPtt 444Risk map risk managementAr = ir x cr x drShort-term risk examplesAr = ir x cr x drRisk avoidance insuranceAttributable risk (ar)Risk financing transfer dan risk retentionBusiness vs financial riskHow to calculate relative riskAbsolute risk vs relative riskThe biggest risk is not taking any riskAttributable risk formulaResidual risk and secondary risk pmpActivity sheet 1 about p/e ratios answer key