El Farol Revisited
  This article is concerned with the global behavior of agents in the El Farol bar problem. In particular, we discuss the global attendance in terms of its mean and variance, and show that there is a strong dependence of both on the externally imposed comfort level. We present a possible interpretation for the observed behavior, and propose that the mean attendance converges to the perceived threshold value as opposed to the actually imposed one. 
Hilmi Lus, Cevat Onur Aydin, Sinan Keten, Hakan Ismail Unsal, Ali Rana   Atilgan