Ray and colleagues1 present data on variation in birth sex ratios among Ontario newborns, showing a significant male-biased sex ratio at birth among multiparous Indian and South Korean mothers. The ...

A stock's price-to-earnings ratio, or P/E ratio, is an expression of how expensive a stock is relative to the profits generated by the underlying company. Because of factors such as risk and growth ...

An international team of researchers, led by UMass Amherst biostatistician Leontine Alkema and her former Ph.D. student Fengqing Chao, developed a new estimation method for assessing natural ...

abstract: Evidence for the influences of climate on early development, maternal condition, and offspring viability in terrestrial vertebrates suggests that climatic change has the potential to induce ...

If banking regulators follow through with proposals to curb the use of internal models for certain portfolios, this should reduce variation in banks’ capital ratios and enhance investor confidence, ...

Investors use a number of different financial ratios to evaluate individual companies. In many cases, the best ratios for evaluating a company differ depending on the particular industry in which the ...