Postdoctoral position in game theory

Call for doctoral or post-doctoral researchers

The Game Theory Research Group,
Centre for Economic and Regional Sciences,
Hungarian Academy of Sciences,
(http://econ.core.hu/english/res/game_desc.html)

supported by the prestigious Momentum Programme of the HAS seeks applicants for one or more doctoral or post-doctoral researchers starting as soon as possible.

Playing with a madman (Baltag at LGS7)

Like all theories, game theory has its own simplifying assumptions. One of these is the rationality of players, that is: a player, like a true homo oeconomicus will maximise its payoff. As a result the outcome of a noncooperative game will be a Nash equilibrium since it consists of best responses to other players' strategies. But then how should we play the game when the opponent is not rational, especially if she has already made irrational choices?

On the accessibility of the core (Review)

This paper by Yang (2010) belongs to a recent wave of literature that study the core of a cooperative game as a dynamic concept. Sengupta and Sengupta (1996) have shown that from any imputation the core can be accessed by a finite number of blocks. Kóczy (2006) provided an alternative blocking sequence and showed that the number of blocks required is bounded. The present paper relies on the proof of Sengupta and Sengupta by using z-dominance and provides an explicit bound on the length of z-dominance paths: the number of active coalitions, that is, coalitions with a payoff higher than the sum of their members' individual payoffs.

LGS7 - Part I.: Salles on the impossibility of liberalism

I am often annoyed if I miss an interesting conference.  In this post I report on LGS7 – the 7th Conference on Logic Game Theoryand Social Choice, held last week in Bucharest. Of course this post will not help me with missed conferences, but hopefully other game theorists will find them interesting.

There are two types of conferences. The big ones, like the EEA-ESEM meetings, where you can network with a lot of new people, but honestly, with most of them, you are not likely to meet ever again. There are also the small, field conferences, where there is always the risk that you meet all the same people as last year (this can also be nice, too), who give a talk you already know. LGS is the third kind, as it collects people from different disciplines (logicians, game theorists, social choice theorists, but also sociologists, computer scientists) with very specialised interests. As it is organised biannually, it is also unlikely that you will hear an updated version of what you have heard last year.

SING8 - first announcement

Finessing a point: augmenting the core (Review)

The competition between two election candidates is modelled in a policy space, where the voters are represented by their ideal points and the candidates by their position on the policy. A voter will support the candidate whose programme is closer to his ideal point, using Euclidean distance. The candidate supported by at least q voters, where q is the quota, is elected. For simple majority q is simply the smallest integer that is at least half of the number of voters.

The class of efficient linear symmetric values for games in partition function form (Review)

The paper studies linear, symmetric and efficient (LSE) solutions or values for games in partition function form. The family of such solutions is rather broad and includes the Shapley value, the Consensus value and the Myerson value just to mention some.