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Essays in Information Economics
Essays in Information Economics
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103504
- ISBN
- 9798315799832
- DDC
- 658
- 서명/저자
- Essays in Information Economics
- 발행사항
- [Sl] : Northwestern University, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 143 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-12, Section: A.
- 주기사항
- Advisor: Pavan, Alessandro;Siniscalchi, Marciano.
- 학위논문주기
- Thesis (Ph.D.)--Northwestern University, 2025.
- 초록/해제
- 요약This dissertation comprises three distinct essays in Information Economics. The first chapter examines why are simple linear compensation schemes common in long-term relationships, even though complex contracts could potentially mitigate moral hazard? To address this question, I study a dynamic principal-agent model in which the principal faces uncertainty about the agent's set of available actions and is ambiguity-averse. In response to this uncertainty, the principal offers the agent a contract in each period to maximize the former's worst-case payoff. I characterize a condition under which simple linear contracts are dynamically optimal when the principal can learn new information about the actions available to the agent, thereby providing a new explanation for the prevalence of linear contracts in practice. I show that this condition is not only sufficient but also necessary for linear optimality (in addition to two regularity conditions), reinforcing its critical role in explaining contract simplicity. Additionally, I characterize the optimal way for the principal to revise the first-period contract and find that it may take one of two forms: the optimal linear contract that would arise in a static environment or a convex combination between the first-period contract and a new linear contract. The latter also includes repetition of the previous contract.In the second chapter, I study a communication game between a non-committed sender and a receiver who can acquire additional information at a cost after receiving the sender's message. The sender's utility is independent of the state, while the receiver seeks to choose an action that matches the true state of nature. This assumption significantly simplifies the analysis and allows me to solve for both the sender's optimal communication strategy and the receiver's optimal learning and action choices in equilibrium. I characterize the conditions under which the sender adopts a babbling strategy, withholding meaningful information. Moreover, I show that, under mild conditions, the receiver chooses to acquire information along the equilibrium path. Finally, I demonstrate that the quality of information (in the Blackwell sense) depends non-monotonically on the receiver's ability to learn. Specifically, when the sender has a lot at stake, she prefers to be more informative when the receiver's ability to learn is limited, making learning and communication act as substitutes. In terms of welfare implications, I show that a completely uninformative equilibrium can, in fact, be ex-ante Pareto superior.In the third and final chapter I study a dynamic mechanism design problem where agents selectively disclose verifiable evidence that arrives over time. In many environments - such as contract negotiations or grant allocation-evidence emerges gradually and can be strategically withheld. I analyze how optimal allocations evolve when the principal can influence the informativeness of future signals through first-period transfers. The optimal mechanism fully smooths the low-type's allocation across time and signals, while the high-type's allocation increases with informativeness above a disclosure-inducing cutoff. I characterize a Gittins-style condition governing optimal experimentation and show how elicitation constraints endogenously limit the principal's ability to learn. The result highlights a fundamental trade-off between information generation and incentive compatibility.
- 일반주제명
- Finance
- 기타저자
- Northwestern University Economics
- 기본자료저록
- Dissertations Abstracts International. 86-12A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202103504
■006m o d
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■020 ▼a9798315799832
■035 ▼a(MiAaPQ)AAI32002254
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a658
■1001 ▼aYehoshua-Sandak, Tomer.
■24510▼aEssays in Information Economics
■260 ▼a[Sl]▼bNorthwestern University▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a143 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-12, Section: A.
■500 ▼aAdvisor: Pavan, Alessandro;Siniscalchi, Marciano.
■5021 ▼aThesis (Ph.D.)--Northwestern University, 2025.
■520 ▼aThis dissertation comprises three distinct essays in Information Economics. The first chapter examines why are simple linear compensation schemes common in long-term relationships, even though complex contracts could potentially mitigate moral hazard? To address this question, I study a dynamic principal-agent model in which the principal faces uncertainty about the agent's set of available actions and is ambiguity-averse. In response to this uncertainty, the principal offers the agent a contract in each period to maximize the former's worst-case payoff. I characterize a condition under which simple linear contracts are dynamically optimal when the principal can learn new information about the actions available to the agent, thereby providing a new explanation for the prevalence of linear contracts in practice. I show that this condition is not only sufficient but also necessary for linear optimality (in addition to two regularity conditions), reinforcing its critical role in explaining contract simplicity. Additionally, I characterize the optimal way for the principal to revise the first-period contract and find that it may take one of two forms: the optimal linear contract that would arise in a static environment or a convex combination between the first-period contract and a new linear contract. The latter also includes repetition of the previous contract.In the second chapter, I study a communication game between a non-committed sender and a receiver who can acquire additional information at a cost after receiving the sender's message. The sender's utility is independent of the state, while the receiver seeks to choose an action that matches the true state of nature. This assumption significantly simplifies the analysis and allows me to solve for both the sender's optimal communication strategy and the receiver's optimal learning and action choices in equilibrium. I characterize the conditions under which the sender adopts a babbling strategy, withholding meaningful information. Moreover, I show that, under mild conditions, the receiver chooses to acquire information along the equilibrium path. Finally, I demonstrate that the quality of information (in the Blackwell sense) depends non-monotonically on the receiver's ability to learn. Specifically, when the sender has a lot at stake, she prefers to be more informative when the receiver's ability to learn is limited, making learning and communication act as substitutes. In terms of welfare implications, I show that a completely uninformative equilibrium can, in fact, be ex-ante Pareto superior.In the third and final chapter I study a dynamic mechanism design problem where agents selectively disclose verifiable evidence that arrives over time. In many environments - such as contract negotiations or grant allocation-evidence emerges gradually and can be strategically withheld. I analyze how optimal allocations evolve when the principal can influence the informativeness of future signals through first-period transfers. The optimal mechanism fully smooths the low-type's allocation across time and signals, while the high-type's allocation increases with informativeness above a disclosure-inducing cutoff. I characterize a Gittins-style condition governing optimal experimentation and show how elicitation constraints endogenously limit the principal's ability to learn. The result highlights a fundamental trade-off between information generation and incentive compatibility.
■590 ▼aSchool code: 0163.
■650 4▼aFinance
■653 ▼aDynamic mechanism design
■653 ▼aDynamic moral hazard
■653 ▼aInformation design
■653 ▼aRational inattention
■653 ▼aRobust contracting
■653 ▼aVoluntary evidence disclosure
■690 ▼a0501
■690 ▼a0511
■690 ▼a0508
■71020▼aNorthwestern University▼bEconomics.
■7730 ▼tDissertations Abstracts International▼g86-12A.
■790 ▼a0163
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357384▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


