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8/16/2019 ICIE - TMA 2015 Submission 15
1/19
PERFORMANCE BASED LEASECONTRACT
INVOLVING DISCRETE PMEka K.A Pakpahan1 and B. P. Iskandar2
1Harapan Bangsa Institute of Technology, Indonesia
2Bandung Institute of Technology, Indonesia
Presented on:
International Conference on Indstrial En!ineerin!" T#eor$"Met#odolo!$ and A%%lication &ICE'TMA(
)o!$a*arta" +,'+- Octo.er +/01
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BAC2GRO3ND•
ince 1!!", #usinesseschoose to lease e$uip%entinstead of o&ning the%.
• 'essee #uys o%erationalti4e instead of e5i%4ent fro% lessor, and o&ner isresponsi#le on assuring higho%erational ti4e through
4aintenance
• The relationship a%onglessee and lessor are de(ned
on lease contract 2
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PRELIMINAR) ST3DIES
• 'iteratures dealing &ith %aintenanceof leased e$uip%ent)
*
•
+eh, .H., and -hen, -.K. 2""• +eh, .H., -hang, /.'., and 'o,H.-. 2"1"
• -hang, /.'., and 'o, H.-. 2"11• +eh, .H., Kao, K.-., and -hang,
/.'. 2"11•
+eh, .H., -hang, /.'., and 'o,H.-., 2"11• 0aturonnatee, 0., urthy, .3.P., and
Boondiskulchok, . 2""4.
• 3iya%osoth, T., and Pongpech, 0. 2""5.
• +eh, .H., Kao, K.-., and -hang, /.'.
2""!.• +eh, .H., and -hang, /.'. 2""5.
• -onsider only thelessor point of 6ie&
• Penalty stipulation onlease contract
• eter%ine ho& lessor
can achie6e %a7i%u%pro(t #y c#oosin! t#eo%ti4al PM %olic$
ARM Based
FRRM Based
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RESEARC6 MOTIVATION
• This paper takes the perspecti6e of lessee andai%s to deter%ine the opti%al leasing price to #eo8ered to the lessor
• The price should %oti6ate lessor to do t&o things) – Accept the lease o8er – Perfor% the opti%al %aintenance e8ort, thus ensuring
the opti%al operational ti%e of the e$uip%ent
• /e adopt %rinci%al a!ent t#eor$ and%erfor4ance .ased 4aintenance concept
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MODELLING FRAME7OR2 :
PRINCIPAL AGENT T6EOR)
LESSEE LESSOR
E9:IPE3T
;PEATI;3
Lessee8sdecision:• 'ease Price
Lessor8sdecision:• aintenance
e8ort
E$uip%ent<s;perational
e6enue
• Branch of ga%e theory =tole, 1!!!>• epict the %rinci%al8s atte%pt to push a!ent to
do so%ething as the principal
Self interest:Mini4al %a$4entfor #i!#esto%erational ti4e
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LEASE PRICE SC6EME
•
/e consider this lease price sche%e)
4
• 'essee leased e$uip%ent fro% lessor for years
and paid a price of paid at the #eginning of leaseperiod.
• To achie6e high operational ti%e, lessee control
lessor #y specifying perfor%ance related pay%ent – &hen e$uip%ent do&nti%e => e7ceeds li%it, lessor ispenali@ed.
– &hen e$uip%ent do&nti%e => is lo&er than li%it,incenti6e is gi6en.
=1>
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E93IPMENT FAIL3RE MAINTENANCE EFFORT•
-onsider e$uip%ent, ha6ing as its failure distri#utionfunction, as its failure density function and as its failurerate. ailure is rectify through 4ini4al correcti;e4aintenance<
• To reduce the likelihood of failure, lessor takes %eriodicalPM action. Each P is conducted #y a (7ed degree of%aintenance e8ort le6el =, &here .
• P e8ect)
•
5
=2>
=*>
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MAINTENANCE COST
• P cost along lease period
• - cost along lease period
=>
=?>
=4>
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E93IPMENT DO7NTIME
• If the nu%#er of failure occurs along lease periodis and each failure causes do&nti%e, then thetotal do&nti%e in the lease period, ( >, is gi6en #y)
•
=5>
• E7pected total do&nti%e and 6ariance
=C>
=!>
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E93IPMENT OPERATIONAL REVEN3E
•
'essee uses e$uip%ent for #usiness purpose&hich generates re6enue =dollarDyears>.
• E7pected operational re6enue and 6ariance)
•
1"
=1">
=11>
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PERFORMANCE RELATEDPA)MENT•
The 6alue of perfor%ance related pay%ent can #eeither positi6e =incenti6e>, or negati6e =penalty>.
• Incenti6e occurs &hen the reali@ation ofdo&nti%e is lo&er than a predeter%ined li%it ,
&hile penalty occurs &hen the opposite happens.
• E7pected 6alue of perfor%ance related pay%entand its 6ariance are gi6en #y)
•
11
=12>
=1*>
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LESSEE AND LESSOR 3TILIT) F3NCTION
•
'essee and lessor &ill try to %a7i%i@e their utility) /here r is the degree of risk
aversion,• r = /, sho&s risk neutrality• r > /" sho&s risk a6erse
•
'essee utility)
• 'essor utility)
12
=1>
=1?>
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LESSEE DECISION MODEL
1*
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SOL3TION MET6OD
1
Step 1 : Use constraint c.2, determine as function of by taking the first derivative of
lessor’s utility function towards m, we then have m().Step 2 : Take constraint c.1 which is binding at and m(), substitute them into utility
function (Eqn. 15). This creates lessee’s utility as function of .
Step : etermine that ma!imi"es lessee’s utility function#$heck for feasibility of ).%f is not feasible# &T'.%f is feasible# continue to ste *
Step ! : +ind the ,alue of m# gi,en from ste -$heck for the feasibility of m ()%f is not feasible# &T'.%f is feasible# continue to ste 5.
Step " : +ind by substituting m (from ste *) and (from ste -) into (c.1) which is binding at .$heck feasibility of ( /).%f is not feasible# &T'.%f is feasible# continue to ste 0.
Step # : enote # # and as solutions of the model
Step 1 :
Step 2 :
Step :
Step ! :
Step " :
Step # :
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N3MERICAL E?AMPLE &0(• /e consider e$uip%ent &ith failure %odeled #y t&o
para%eter /ei#ull distri#ution, . The 6alue of = 1 yearsand.
• 'ease contract period is planned for years. Each failurecauses do&nti%e &ith para%eter . ;ther para%eters are
gi6en #elo&.
•
uring the contract, lessor is responsi#le to conduct P and-. Penalty is gi6en if the e$uip%ent
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N3MERICAL E?AMPLE &+(
14
)isk *ttitude Setting U Lessee U Lessor
+oth )isk eutral 5*.12 /.203 /.14- -/5.03 10.1-2
)isk *verse -essor 1/3.-2 /./10 /.14 53.4*- 15./-2
)isk *verse -essee 5/./45 /.335 /.14 -/5./5 12.143
)isk *ttitude Setting U Lessee U Lessor
+oth )isk eutral 5*.12 /.203 /.14- -/5.03 10.1-2
)isk *verse -essor 1/3.-2 /./10 /.14 53.4*- 15./-2
)isk *verse -essee 5/./45 /.335 /.14 -/5./5 12.143
Reslt
• By si%ple calculation &e could notice that for 1, putting%aintenance e8ort le6el &ould #e suFcient to hinderlessor fro% penalty, #ut result on ta#le a#o6e sho&s thatthe opti%al is al&ays greater than @ero.
• This sho&s that under pay%ent sche%e o8ered, lessor@old .e indced to %erfor4 .etter t#an tar!et<
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• The result pattern sho&n for 6arious risk attitude
setting ) – &hen #oth parties are risk neutral, there is no lost due to risk
pre%iu%, co%#ination of (7ed price and perfor%ance relatedpay%ent are opti%al to induce .
– &hen lessor is risk a6erse, they &ould a6oid risk due to
uncertainty of inco%e, the 6alue of on this second setting is%uch s%aller than on the (rst
– &hen lessee is risk a6erse, they &ould then push risk to thelessor sho&ed #y the 6alue of &hich is %uch larger than onthe (rst.
•
15
)isk *ttitude Setting U Lessee U Lessor
+oth )isk eutral 5*.12 /.203 /.14- -/5.03 10.1-2)isk *verse -essor 1/3.-2 /./10 /.14 53.4*- 15./-2
)isk *verse -essee 5/./45 /.335 /.14 -/5./5 12.143
)isk *ttitude Setting U Lessee U Lessor
+oth )isk eutral 5*.12 /.203 /.14- -/5.03 10.1-2)isk *verse -essor 1/3.-2 /./10 /.14 53.4*- 15./-2
)isk *verse -essee 5/./45 /.335 /.14 -/5./5 12.143
Reslt
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CONCL3SIONS•
/e ha6e deter%ined the o%ti4al lease%a$4ent sc#e4e =(7ed price and perfor%ancerelated pay%ent> to #e o8ered #y the lessor atthe #eginning of a lease contract.
• This lease pay%ent %eets lessor
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T6AN2S FOR T6EATTENTION
1!