Residential accessibility’s relationships with crash rates per capita

Permanence of a general discrete-time two-species-interaction model with nonlinear per-capita growth rates

The per-capita growth rate of a species is influenced by density-independent, positive and negative density-dependent factors. These factors can lead to nonlinearity with a consequence that species may process multiple nontrivial equilibria in its single state (e.g., Allee effects). This makes the study of permanence of discrete-time multi-species population models very challenging due to the c...

Correlation of Alzheimer’s Disease Death Rates with Historical Per Capita Personal Income in the USA

Alzheimer's disease (AD) is a progressive degenerating disease of complex etiology. A variety of risk factors contribute to the chance of developing AD. Lifestyle factors, such as physical, mental and social activity, education, and diet all affect the susceptibility to developing AD. These factors are in turn related to the level of personal income. Lower income usually coincides with lower le...

Deconstructing the `Rosenfeld Curve': Why is per capita residential energy consumption in California so low?

Since the early 1970s, electricity consumption per capita in California has stayed nearly constant, while rising steadily for the US as a whole. At the same time, state energy policies have led the nation in encouraging energy e ciency programs and stringent appliance and building standards. In addition to regulatory policy, California has incentivized utilities to implement a diverse set of pr...

Distribution of per Capita Income in Georgia

Convergence in Carbon Emissions per Capita

Convergence in cross country per capita carbon emission rates is an important concept in the climate change debate. This paper provides an empirical analysis of emissions per capita convergence. This analysis is crucial to the assessment of projection models that generate convergence in emission per capita rates and to the assessment of policy proposals that advocate imposing convergence in emi...