Many peer-to-peer (P2P) applications require that nodes behave altruistically in order to perform tasks collectively. Here we examine a class of simple protocols that aim to self-organize P2P networks into clusters of altruistic nodes that help each other to complete jobs requiring diverse...

Unemployment exacts a high cost to its victims, not only in lost income, but also in terms of quality of life (insecurity, depression, abandoned families, divorce, suicide and poorer health). It also exacts a high cost to society in terms of lost output, foregone tax revenue, depreciating human...

This article deals with the puzzle of the well-known gap between actual and preferred working hours (i.e. over-employment). We propose a new explanation based on selective attention in decision making and test it with the Time Competition Survey 2003 which includes information of 1114 employees...

Purpose The purpose of this paper is twofold. First, it evaluates the impossibility proposition, called the “Arrow impossibility theorem” (AIT), which is widely attributed to Arrow’s social choice theory. This theorem denies the possibility of arriving at any collective majority resolution...