Habitat fragmentation may present a major impediment to species range shifts caused by climate change, but how it affects local community dynamics in changing has so far not been adequately investigated empirically. Using long-term monitoring data of butterfly assemblages, we tested the effects amount and distribution semi-natural habitat (SNH), moderated traits, on climate-driven turnover. We ...

We describe the structure and present situation of the Chinese healthcare system and discuss its primary problems and challenges. We discuss problems with inefficient burden sharing, adverse provider incentives and huge inequities, and seek explanations in the structural features of the Chinese healthcare system. The current situation will be further challenged in the future by an aging populat...

The magnitude of provider uncompensated care has become an important public policy issue. Yet existing measures of uncompensated care are flawed because they compare uninsured payments to list prices, not to the prices actually paid by the insured. We address this issue using a novel source of data from a vendor that processes financial data for almost 4000 physicians. We measure uncompensated ...

Agents involved in a conflicting claims problem may be concerned with the proportion of their claims that is satisfied, or with the total amount they get. In order to relate both perspectives, we associate to each conflicting claims problem a bargaining-in-proportions set. Then, we obtain a correspondence between classical bargaining solutions and usual claims rules. In particular, we show that...

We model the recursive moments of aggregate discounted claims, assuming inter-claim arrival time follows a Weibull distribution to accommodate overdispersed and underdispersed data set. use copula represent dependence structure between its subsequent claim amount. then Laplace inversion via Gaver-Stehfest algorithm solve numerically first second moments, which takes form Volterra integral equat...

In recent years, statisticians and psychologists have provided the critique that p-values do not capture the evidence afforded by data and are, consequently, ill suited for analysis in scientific endeavors. The issue is particular salient in the assessment of the recent evidence provided for ESP by Bem (2011) in the mainstream Journal of Personality and Social Psychology. Wagenmakers, Wetzels, ...

The massive diffusion of online social media allows for the rapid and uncontrolled spreading of conspiracy theories, hoaxes, unsubstantiated claims, and false news. Such an impressive amount of misinformation can influence policy preferences and encourage behaviors strongly divergent from recommended practices. In this paper, we study the statistical properties of viral misinformation in online...