ESD Summer School 2010
Scientific Director: Diego Gambetta, Oxford University
Signaling theory and applications in the
social and biological sciences
Key question: Signaling theory (ST) emerged from
economics and biology in the mid-70s (Spence, Zahavi, Grafen)
and is now applied in other fields. It tackles a fundamental problem
of communication: how can an agent, the receiver, establish whether
another agent, the signaller, is telling or otherwise conveying
the truth about a state of affairs or event which the signaller
might have an interest to misrepresent? And, conversely, how can
the signaller persuade the receiver that he is telling the truth,
whether he is telling it or not? This two-pronged question potentially
arises every time the interests between signallers and receivers
diverge or collide and there is asymmetric information, namely
the signaller is in a better position to know the truth than the
receiver is.
The school will first present the theory’s
solution to this question, the history of the idea, and then a
series of tests and applications of the theory in a variety of
fields. The school will have 7 lecturers, each of whom will present
one unit composed of one lecture and one seminar.
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