In everyday life, individuals interact with relatives, friends and colleagues, share ideas and passions and cooperate with others to pursue common goals. Within each social domain, individuals recognize themselves as a group member with rights and duties to observe. Understanding the importance...

During the last decades, in many countries retrospective payment systems for hospital care have been replaced by prospective payment methods, mainly DRG-based ones. The latter, though encouraging a more efficient use of hospital resources, present several undesired effects, some of which are...