2025 Seminar Schedule
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Friday, April the 4th, 2025. Time: 12:30
Flip Klijn IAE-CSIC/BSE
The Top Trading Cycles Algorithm and Respecting Improvement inKidney Exchange Programs
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Thursday, April the 24th, 2025. Time: 12:30
Erik Cobo. Statistics an Operations Research Department, UPC
Què vol dir "estadísticament significatiu"? (What do we mean by "statistically significant"?)
The Top Trading Cycles Algorithm and Respecting Improvement inKidney Exchange Programs
LANGUAGE: English
PLACE: EIO Seminar, ETSEIB (ed. Eng. Industrial), Planta 6, Campus Sud. UPC, Av. Diagonal 647, Barcelona.
ON-LINE: https://meet.google.com/vro-whgy-twd
ABSTRACT:
The paper studies the design of allocation rules in Kidney Exchange Programs (KEPs), introducing and analyzing the "respecting improvements" property, which ensures that patients benefit when bringing better or additional donors. Building on the foundational Shapley-Scarf housing market model and the Top Trading Cycles (TTC) algorithm, the authors provide game-theoretic insights and efficient optimization formulations. They highlight that while TTC satisfies the incentive property under strict preferences, standard transplant-maximizing objectives may violate it. The study also includes simulations showing that core allocations strike a good balance between transplant quantity/quality and incentivizing patient participation. The work underscores the importance of patient-donor incentives and proposes core allocations as a promising and practical alternative.
ABOUT THE AUTHOR: Flip Klijn is Director and Scientific Researcher at the Institute for Economic Analysis (IAE-CSIC) and a Research Professor at the Barcelona School of Economics (BSE). His current research centers on the design of centralized mechanisms for markets involving the allocation of indivisible goods to economic agents, as well as for markets where goods or services are exchanged without monetary transfers. For more information, you can chek his webpage: https://sites.google.com/view/flipklijn/
Què vol dir "estadísticament significatiu"? (What do we mean by "statistically significant"?)
LANGUAGE: Catalan
PLACE: C5 Building, Room C5-202, Campus Nord, UPC, Barcelona
ON-LINE: https://meet.google.com/vro-whgy-twd
ABSTRACT:
For several decades, the expression "statistically significant" has been a standard in scientific communications, but its use is changing nowadays. In this seminar I will explore how this expression has been used in publication guideliness and drug regulations, and also the recent recommendations that advise against its use. Though an historical view, I will offer my interpretation of its evolution and the potential implications in the communication of scientific results.
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