ELFT HÍRADÓ

[Varga Imre <varga AT neumann.phy.bme.hu>]

                                              MEGHIVO
                     a BME Fizikai Intezet, Elmeleti Fizika Tanszek
                                          szeminariumara:

                                           Doyne Farmer
                                 Santa Fe Institute, NM, USA

                            "Economics and complex systems"

        An economy provides one of the best examples of a complex system.
        Economics is fundamentally different than physics or even biology
        because it is forced to address the presence of agents who can
        reason. The traditional approach has been to assume perfect 
rationally     
        and selfish optimizing. While there are some situations where this   
        approach can be very useful, there are many situations where it is 
        guaranteed to fail. I will discuss some simple examples in which the 
        classic approach of attempting to understand the world in terms of 
        Nash equilibria is severely challenged. The first example is when 
        agents try to learn their opponents strategy in the game of
        rock-paper-scissors; the second example is a simple game of chance in
        which subjective perceptions can alter objective reality (a common
        occurrence in an economy). Then I will discuss an evolutionary
        approach to modeling agent behavior, and argue that financial markets
        may provide one of the best laboratories for studying selection under
        variation and descent, i.e. they provide an example where one can
        quantitatively study social evolution.

         Helyszin: BME Fizikai Intezet,
                       Budafoki ut 8.
                       F-epulet, F29-es eloadoterem

         Idopont: 2006. oktober 5. csutortok, 16:00.

         Minden erdeklodot szivesen latunk.

                                                                              
  Varga Imre