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Essays on Managing Resources in the Sharing Economy- [electronic resource]
Essays on Managing Resources in the Sharing Economy- [electronic resource]
상세정보
- Material Type
- 학위논문
- 0016931626
- Date and Time of Latest Transaction
- 20240214100054
- ISBN
- 9798379704988
- DDC
- 519.4
- Author
- Akturk, Tahsin Deniz.
- Title/Author
- Essays on Managing Resources in the Sharing Economy - [electronic resource]
- Publish Info
- [S.l.] : The University of Chicago., 2023
- Publish Info
- Ann Arbor : ProQuest Dissertations & Theses, 2023
- Material Info
- 1 online resource(158 p.)
- General Note
- Source: Dissertations Abstracts International, Volume: 84-12, Section: B.
- General Note
- Advisor: Candogan, Ozan;Gupta, Varun.
- 학위논문주기
- Thesis (Ph.D.)--The University of Chicago, 2023.
- Restrictions on Access Note
- This item must not be sold to any third party vendors.
- Abstracts/Etc
- 요약The dissertation mainly focuses on the spatial imbalance of resources observed in the sharing economy. It consists of two main chapters, with the first chapter focusing on designing policies to solve this imbalance and the second chapter focusing on evaluating the performance of easy-to-implement policies on solving this imbalance of resources. In the third chapter, we discuss possible extensions and other applications for the methodology we provided. In the first chapter, we consider the problem of managing resources in shared micro-mobility systems (bike-sharing and scooter-sharing). An important task in managing such systems is periodic repositioning/recharging/sourcing units to avoid stockouts or excess inventory at nodes with unbalanced flows. We consider a discrete-time model: each period begins with an initial inventory at each node in the network, and then customers (demand) materialize at the nodes. Each customer picks up a unit at the origin node and drops it off at a randomly sampled destination node with an origin-specific probability distribution. We model the above network inventory management problem as an infinite horizon discrete-time discounted Markov Decision Process and prove the asymptotic optimality of a novel mean-field approximation to the original MDP as the number of stations becomes large. To compute an approximately optimal policy for the mean-field dynamics, we provide an algorithm with a running time that is logarithmic in the desired optimality gap. Lastly, we compare the performance of our mean-field-based policy to state-of-the-art heuristics via numerical experiments, including experiments using Austin scooter-sharing data.The second chapter considers the joint optimization of rebalancing/sourcing inventory on a graph. We focus on the lost-sales setting with customer-induced relocations. Through a coupling analysis, we provide worst-case performance bounds, with tight instances, for policies commonly used in practice. We provide further insights into the performance of these policies and discuss cost regimes where they are effective.
- Index Term-Uncontrolled
- Dynamic programming
- Index Term-Uncontrolled
- Inventory management
- Index Term-Uncontrolled
- Micromobility systems
- Index Term-Uncontrolled
- Reusable resources
- Index Term-Uncontrolled
- Sharing economy
- Index Term-Uncontrolled
- Stochastic processes
- Added Entry-Corporate Name
- The University of Chicago Business
- Host Item Entry
- Dissertations Abstracts International. 84-12B.
- Host Item Entry
- Dissertation Abstract International
- Electronic Location and Access
- 로그인을 한후 보실 수 있는 자료입니다.
- 소장사항
-
202402 2024
- Control Number
- joongbu:642825
MARC
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■00520240214100054
■006m o d
■007cr#unu||||||||
■020 ▼a9798379704988
■035 ▼a(MiAaPQ)AAI30317514
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a519.4
■1001 ▼aAkturk, Tahsin Deniz.▼0(orcid)0000-0002-6541-6619
■24510▼aEssays on Managing Resources in the Sharing Economy▼h[electronic resource]
■260 ▼a[S.l.]▼bThe University of Chicago. ▼c2023
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2023
■300 ▼a1 online resource(158 p.)
■500 ▼aSource: Dissertations Abstracts International, Volume: 84-12, Section: B.
■500 ▼aAdvisor: Candogan, Ozan;Gupta, Varun.
■5021 ▼aThesis (Ph.D.)--The University of Chicago, 2023.
■506 ▼aThis item must not be sold to any third party vendors.
■520 ▼aThe dissertation mainly focuses on the spatial imbalance of resources observed in the sharing economy. It consists of two main chapters, with the first chapter focusing on designing policies to solve this imbalance and the second chapter focusing on evaluating the performance of easy-to-implement policies on solving this imbalance of resources. In the third chapter, we discuss possible extensions and other applications for the methodology we provided. In the first chapter, we consider the problem of managing resources in shared micro-mobility systems (bike-sharing and scooter-sharing). An important task in managing such systems is periodic repositioning/recharging/sourcing units to avoid stockouts or excess inventory at nodes with unbalanced flows. We consider a discrete-time model: each period begins with an initial inventory at each node in the network, and then customers (demand) materialize at the nodes. Each customer picks up a unit at the origin node and drops it off at a randomly sampled destination node with an origin-specific probability distribution. We model the above network inventory management problem as an infinite horizon discrete-time discounted Markov Decision Process and prove the asymptotic optimality of a novel mean-field approximation to the original MDP as the number of stations becomes large. To compute an approximately optimal policy for the mean-field dynamics, we provide an algorithm with a running time that is logarithmic in the desired optimality gap. Lastly, we compare the performance of our mean-field-based policy to state-of-the-art heuristics via numerical experiments, including experiments using Austin scooter-sharing data.The second chapter considers the joint optimization of rebalancing/sourcing inventory on a graph. We focus on the lost-sales setting with customer-induced relocations. Through a coupling analysis, we provide worst-case performance bounds, with tight instances, for policies commonly used in practice. We provide further insights into the performance of these policies and discuss cost regimes where they are effective.
■590 ▼aSchool code: 0330.
■653 ▼aDynamic programming
■653 ▼aInventory management
■653 ▼aMicromobility systems
■653 ▼aReusable resources
■653 ▼aSharing economy
■653 ▼aStochastic processes
■690 ▼a0796
■690 ▼a0454
■690 ▼a0310
■71020▼aThe University of Chicago▼bBusiness.
■7730 ▼tDissertations Abstracts International▼g84-12B.
■773 ▼tDissertation Abstract International
■790 ▼a0330
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16931626▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
■980 ▼a202402▼f2024
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