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Blockchain-Enabled Smart Contract System for Creating System-Based Trust in Subcontracting Process
Blockchain-Enabled Smart Contract System for Creating System-Based Trust in Subcontracting...
Blockchain-Enabled Smart Contract System for Creating System-Based Trust in Subcontracting Process

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자료유형  
 학위논문 서양
최종처리일시  
20260202105538
ISBN  
9798265402325
DDC  
658
저자명  
Yoon, Jong Han.
서명/저자  
Blockchain-Enabled Smart Contract System for Creating System-Based Trust in Subcontracting Process
발행사항  
[Sl] : Georgia Institute of Technology, 2023
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2023
형태사항  
121 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: A.
주기사항  
Advisor: Pishdad-Bozorgi, Pardis.
학위논문주기  
Thesis (Ph.D.)--Georgia Institute of Technology, 2023.
초록/해제  
요약The unethical practices of bid shopping and peddling during the subcontractor procurement process can reduce trust between the general contractor (GC) and subcontractors (Subs) and lead to low-quality work, claims and disputes, schedule delays, and cost overruns. Despite the adverse impacts of these unethical practices on construction projects, the construction industry still lacks an ethical and trustworthy subcontracting process to prevent bid shopping and peddling. Furthermore, the transactional relationships between the GC and Subs in construction projects make profit-driven pursuits tempting, thereby increasing opportunistic behaviors.This dissertation contributes to the body of knowledge by developing a framework based on a blockchain-enabled smart contract system to address these unethical practices, thus establishing the subcontracting process grounded on system-based trust. Blockchain provides tamper-proof and decentralized data storage, and smart contracts enable an automatic contract execution by leveraging the data stored in Blockchain. The proposed framework employing the above advantages is demonstrated through a pilot test, and its feasibility and effectiveness are validated through a survey with nine professionals who had sufficient years of experience in the construction industry. The validation results show that the framework can prevent the aforementioned unethical practices and enable Subs to fairly compete for bid awards with proper budgets.In addition to the development of a subcontracting process leveraging a blockchainenabled smart contract system, this dissertation contributes to the body of knowledge by providing a game-theoretic framework that the GCs and Subs can use to quantify and evaluate the outcomes of their strategic behaviors (e.g., trust-driven vs profit-driven behaviors) in the subcontracting process. Game theory in the framework enables mathematically analyzing and comparing the payoffs of strategic behaviors, using Nash Equilibrium. This dissertation also contributes to the body of knowledge by empirically verifying the effects of system-based trust created by a blockchain-enabled smart contract system on GCs' and Subs' strategic behaviors by conducting role-playing simulations. The developed game-theoretic-framework-based analysis of the simulations demonstrates that the blockchain-enabled smart contract effectively promotes trust-driven behaviors by enhancing system-based trust, thereby leading to a win-win game for the GC and Subs in the subcontracting process.These valuable findings establish the foundation for a transformative subcontracting process that is more ethical and grounded on system-based trust. Moreover, the findings can help the construction industry deepen its understanding of the significance of trust-driven behaviors in the subcontracting process. The findings also promote the enforcement of trust-driven behaviors by enhancing system-based trust through blockchain technology.
일반주제명  
Behavior
일반주제명  
Codes
일반주제명  
Engineers
일반주제명  
Highway construction
일반주제명  
Payoffs
일반주제명  
Game theory
일반주제명  
Trust
일반주제명  
Engineering
일반주제명  
Bids
일반주제명  
Education
일반주제명  
Computer science
일반주제명  
Ethics
기타저자  
Georgia Institute of Technology.
기본자료저록  
Dissertations Abstracts International. 87-05A.
전자적 위치 및 접속  
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MARC

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■1001  ▼aYoon,  Jong  Han.
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■500    ▼aAdvisor:  Pishdad-Bozorgi,  Pardis.
■5021  ▼aThesis  (Ph.D.)--Georgia  Institute  of  Technology,  2023.
■520    ▼aThe  unethical  practices  of  bid  shopping  and  peddling  during  the  subcontractor  procurement  process  can  reduce  trust  between  the  general  contractor  (GC)  and  subcontractors  (Subs)  and  lead  to  low-quality  work,  claims  and  disputes,  schedule  delays,  and  cost  overruns.  Despite  the  adverse  impacts  of  these  unethical  practices  on  construction  projects,  the  construction  industry  still  lacks  an  ethical  and  trustworthy  subcontracting  process  to  prevent  bid  shopping  and  peddling.  Furthermore,  the  transactional  relationships  between  the  GC  and  Subs  in  construction  projects  make  profit-driven  pursuits  tempting,  thereby  increasing  opportunistic  behaviors.This  dissertation  contributes  to  the  body  of  knowledge  by  developing  a  framework  based  on  a  blockchain-enabled  smart  contract  system  to  address  these  unethical  practices,  thus  establishing  the  subcontracting  process  grounded  on  system-based  trust.  Blockchain  provides  tamper-proof  and  decentralized  data  storage,  and  smart  contracts  enable  an  automatic  contract  execution  by  leveraging  the  data  stored  in  Blockchain.  The  proposed  framework  employing  the  above  advantages  is  demonstrated  through  a  pilot  test,  and  its  feasibility  and  effectiveness  are  validated  through  a  survey  with  nine  professionals  who  had  sufficient  years  of  experience  in  the  construction  industry.  The  validation  results  show  that  the  framework  can  prevent  the  aforementioned  unethical  practices  and  enable  Subs  to  fairly  compete  for  bid  awards  with  proper  budgets.In  addition  to  the  development  of  a  subcontracting  process  leveraging  a  blockchainenabled  smart  contract  system,  this  dissertation  contributes  to  the  body  of  knowledge  by  providing  a  game-theoretic  framework  that  the  GCs  and  Subs  can  use  to  quantify  and  evaluate  the  outcomes  of  their  strategic  behaviors  (e.g.,  trust-driven  vs  profit-driven  behaviors)  in  the  subcontracting  process.  Game  theory  in  the  framework  enables  mathematically  analyzing  and  comparing  the  payoffs  of  strategic  behaviors,  using  Nash  Equilibrium.  This  dissertation  also  contributes  to  the  body  of  knowledge  by  empirically  verifying  the  effects  of  system-based  trust  created  by  a  blockchain-enabled  smart  contract  system  on  GCs'  and  Subs'  strategic  behaviors  by  conducting  role-playing  simulations.  The  developed  game-theoretic-framework-based  analysis  of  the  simulations  demonstrates  that  the  blockchain-enabled  smart  contract  effectively  promotes  trust-driven  behaviors  by  enhancing  system-based  trust,  thereby  leading  to  a  win-win  game  for  the  GC  and  Subs  in  the  subcontracting  process.These  valuable  findings  establish  the  foundation  for  a  transformative  subcontracting  process  that  is  more  ethical  and  grounded  on  system-based  trust.  Moreover,  the  findings  can  help  the  construction  industry  deepen  its  understanding  of  the  significance  of  trust-driven  behaviors  in  the  subcontracting  process.  The  findings  also  promote  the  enforcement  of  trust-driven  behaviors  by  enhancing  system-based  trust  through  blockchain  technology.
■590    ▼aSchool  code:  0078.
■650  4▼aBehavior
■650  4▼aCodes
■650  4▼aEngineers
■650  4▼aHighway  construction
■650  4▼aPayoffs
■650  4▼aGame  theory
■650  4▼aTrust
■650  4▼aEngineering
■650  4▼aBids
■650  4▼aEducation
■650  4▼aComputer  science
■650  4▼aEthics
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■690    ▼a0394
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■71020▼aGeorgia  Institute  of  Technology.
■7730  ▼tDissertations  Abstracts  International▼g87-05A.
■790    ▼a0078
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360511▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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