We investigate the density of non-contract (private) physicians in a two-tiered health care system, i.e., one with co-existing public and private health care providers. In particular, we analyze how the densities of private and public suppliers of outpatient health care (general practitioners...

This paper analyzes the determinants of the perceived stress level of workers with a special focus on the effects of commuting, while controlling for personal and work-related characteristics. Using ordered logistic regression we find that several dimensions of the commuting situation, such as...

Zur Jahrtausendwende befindet sich der Sozialstaat auf dem Prüfstand: Die Systeme der sozialen Sicherheit werden derzeit aus mehreren, sich gegenseitig verstärkenden Gründen einer ökonomischen und politischen Tauglichkeitsprüfung unterzogen. In diesem Buch werden in zehn Beiträgen...

Results of many atmospheric science applications are processed graphically using colors to encode certain parts of the information. Colors should (1) allow humans to process more information, (2) guide the viewer to the most important information, (3) represent the data appropriately without...