Charles Chadi Ayoubi
EPFL CDM MTEI CEMI
ODY 4 16 (Odyssea)
Station 5
CH-1015 Lausanne
EPFL E EDMT-GE
ODY 1 17 (Odyssea)
Station 5
CH-1015 Lausanne
Publications
Infoscience
At the origins of learning: Absorbing knowledge fl
At the Origins of Learning: Absorbing Knowledge Flows from within the Team
Empirical studies document a positive effect of collaboration on team productivity. However, little has been done to assess how knowledge flows among team members. Our study addresses this issue by exploring unique rich data on a Swiss funding program promoting research team collaboration. We find that being involved in an established collaboration and team size foster the probability of an individual learning from the other team members. We also find that team members with limited experience are more likely to learn from experienced peers. Moreover, there is an inverted U-shaped effect of cognitive distance on the probability of learning from other team members.
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Exploring the diversity of social preferences: Is
| Home > Exploring the diversity of social preferences: Is a heterogeneous population evolutionarily stable under assortative matching? |
Exploring the diversity of social preferences: Is a heterogeneous population evolutionarily stable under assortative matching?
Why do individuals make different decisions when confronted with similar choices? This paper investigates whether the answer lies in an evolutionary process. Our analysis builds on recent work in evolutionary game theory showing the superiority of a given type of preferences, homo moralis, in fitness games with assortative matching. We adapt the classical definition of evolutionary stability to the case where individuals with distinct preferences in a population coexist. This approach allows us to establish the characteristics of an evolutionarily stable population. Then, introducing an assortment matrix for assortatively matched interactions, we prove the existence of a heterogeneous evolutionarily stable population in 2x2 symmetric fitness games under constant assortment, and we identify the conditions for its existence. Conversely to the classical setting, we find that the favored preferences in a heterogeneous evolutionarily stable population are context-dependent. As an illustration, we discuss when and how an evolutionarily stable population made of both selfish and moral individuals exists in a prisoner's dilemma. These findings offer a theoretical foundation for the empirically observed diversity of preferences among individuals.
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The important thing is not to win, it is to take p
| Home > The important thing is not to win, it is to take part: What if scientists benefit from participating in research grant competitions? |
The important thing is not to win, it is to take part: What if scientists benefit from participating in research grant competitions?
“The important thing is not to win, it is to take part,” this famous saying by Pierre de Coubertin asserts that the value athletes draw from Olympic games lies in their participation in the event and not in the gold they collect during it. We find similar evidence for scientists involved in grant competitions. Relying on unique data from a Swiss funding program, we find that scientists taking part in a research grant competition boost their number of publications and average impact factor while extending their knowledge base and their collaboration network regardless of the result of the competition. Receiving the funds increases the probability of co-authoring with co-applicants but has no additional impact on the individual productivity.
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