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DOI:10.24200/J30.2018.50828.2348
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Q}}eD� 30 |=yxO=t 'u=Q=mv=t}B Q_v R= "OvQ=O =Q KqY= QO ha=[t C}ty= �u=t}BMQv p}OaD 'O}OH |=yCt}k 'Q=m Q}O=kt Q}}eD� 29 w �=yCN=OQB� 37 '�u=t}B COtxOw@ u=oOvyOMU=B wtHt Q_v x@ l}ORv xm OvDW=O =Q Q}}eD x@ R=}v u} QDW}@ �u=t}B
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ZQi uwtR; "4"5"CU= xOW xDN=OQB swO x}[Qi w pw= |=yx}[Qi |UQQ@ x@ 'ZQi uwtR; VN@ QO|x}[Qi uwtR; |=Q@ xiQ]l}Tv=} Q=w R}r=v; x@ \w@ Qt G}=Dv |xOvyO u=Wv '6 pwOHC=Q_v u}ov=}t u}@ |Q=t; Q_v R= |Q=O|vat Cw=iD 'QwmPt p}rLD T=U=Q@ "CU= pw=x@ pwYi Q}}eD C}ty= |xQ=@ QO u=Q=mv=t}B w �u=Q_=v w� u=Qw=Wt 'u=}=tQiQ=m %xwQo xU'|U=vWQ=m xwQo xU Q_v R= =ypYi |}=UQ=v 'xH}Dv QO "OQ=Ov OwHw swU pYi R= Q}e'xwQo xU Qy QO xm OyO|t u=Wv u}= "OvQ=O u=Um} C}ty= 'swU pYi R= Q}e x@u=Um} 'swU pYi R= Q}e '=ypYi |xty QO u=v; |=yQ_v u}ov=}t |U=vWQ=m0 05 |Q=O|vat K]U QO Qw=Wt xwQo w Q=mv=t}B xwQo Q_v 'swU pYi QO "CU=xwQo w Q=mv=t}B xwQo Q_v u}vJty "CU= Cw=iDt sy =@ (P � value = 0 006)
Cw=iDt sy =@ (P � value = 0 022)0 05 |Q=O|vat K]U QO R}v =tQiQ=mCU= u=Um} 0 05 |Q=O|vat K]U QO Qw=Wt w =tQiQ=m |=yxwQo Q_v |rw "CU=OwW|t OQ pt=m CQwYx@ pw= |x}[Qi T=U= u}= Q@ "(P � value = 0 522)
p}rLD R= R}v swO |x}[Qi uwtR; s=Hv= Qw_vtx@ "OwW|t pw@k |�RH CQwYx@ wp}rLD x@ \w@ Qt |Q=t; G}=Dv '7 pwOH QO "CU= xOW xO=iDU= xiQ]l} Tv=} Q=wxOW OQ x}rw= ZQi '0 05 |Q=O=vat K]U QO u; j@=]t xm 'CU= xOW x�=Q= Q}N=Qy QO Q}}eD QO C}ty= u=R}t CU=vat u}O@ xm "(P � value = 0 000) CU=|Q=t; Q_v R= |Q=O=vat Cw=iD u=oOvyOMU=B pm Q_v R= u=t}B |twta \}=QW pYiR= Q}e x@� Qo}Om} =@ =ypYi Q}=U |xU}=kt QO xm OyO|t u=Wv 8 pwOH =t= "OQ=O|xU}=kt G}=Dv '�LSD� xv=oOvJ |=yxU}=kt x@ \w@ Qt G}=Dv x@ xHwD =@ '�pw= pYi'0 05 |Q=O=vat K]U QO xOvyOMU=B Q_v R= Q}}eDC}ty= |xQtv u}ov=}t |wO x@ wO<RH x@ pYi Qy QO Q}}eD x@ R=}vC}ty= xmCU=vat u}O@ u}= "OvQ=Ov |Q=O=vat Cw=iDCQwYx@ swO |x}[Qi u}=Q@=v@ &CU= |m} =yxOvvmCmQW pm x=oO}O R= pw= pYi
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0 0 46 1 00 0 20 49 0 91 0 24 170 0 15 0 60 0 12 47
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=yCWwv=B1. principal-agent problem2. Shi3. Ceric4. Chang5. One way analysis of variance6. least signi�cant di�erence (LSD)7. non-parametric Kruskal Wallis8. adverse selection9. moral hazard
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3. Hosseinian, S.M. and Carmichael, D.G. \An optimal in-
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centive contract with a risk-neutral contractor", Journalof Construction Engineering Management, 139(8), pp.899-909 (2013a).
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