The extremal coefficient function has been discussed as an analog of the autocovariance function for extreme values. However, as to the behavior of valid extremal coefficient functions little is known apart from their positive definite type. In particular, the reconstruction of valid processes...

We present a new approach to treatment assignment in (field) experiments for the case of one or multiple treatment groups. This approach - which we call minimizing MSE approach - uses sample characteristics to obtain balanced treatment groups. Compared to other methods, the min MSE procedure is...

This paper asks whether marriage decisions of unmarried mature couples are driven by the prospect of financial advantages for the later widowed after one partner has suffered a serious health shock. We hypothesize that, in contrast to traditional marriage models, such health shocks may induce...

The major German health care reforms undertaken since the late 1990s resulted in the adoption of selective contracting mechanisms in a formerly sectorally separated health care system. These reforms marked the launch of managed care in Germany that is expected to yield both a higher quality of...

Deutschlands elf Metropolregionen können als Motor der sozio-ökonomischen Entwicklung betrachtet werden, da sie weithin mit ihrer Erreichbarkeit auf das europäische Ausland und dahinter wirken. Vor dem Hintergrund der gesamtwirtschaftlichen Herausforderungen und der aktuellen...

Recent healthcare reforms have sought to increase efficiency by introducing managed care (MC) while respecting consumer preferences by admitting choice between MC and conventional care. This article proposes an institutional change designed to let German consumers choose between the two settings...

Der Wettbewerb im deutschen Gesundheitswesen ist - vor allem zwischen den Leistungserbringern - trotz diverser Reformen nicht sehr ausgeprägt. Inzwischen gibt es zwar die Möglichkeit, individuelle Verträge zwischen einzelnen Anbietern und den Krankenkassen abzuschließen, dies wird aber kaum...

Recent healthcare reforms have sought to increase efficiency by introducing managed care (MC) as an alternative to conventional care. This article proposes an institutional change designed to let German consumers choose between the two settings through directing payments from the Federal Health...

This paper analyzes the role of regional demographic, socioeconomic and political factors on changes in mobility during the COVID-19 pandemic. It provides new empirical evidence for the regional differentiation of lockdown measures and indicates a possible reorganization of spatial economic and...