We propose a method for extending a given asset pricing formula to account for two additional sources of risk: the risk associated with future changes in market–calibrated parameters and the remaining risk associated with idiosyncratic variations in the individual assets described by the formula. The paper makes simple and natural assumptions for how these risks behave. These extra risks should...

Concerning a single major league at bat, the percentage of variance in batting performance attributable to skill differentials among major league baseball players can be calculated statistically. The statistically appropriate calculation is seriously discrepant with intuitions about the influence of skill in batting performance. This paradoxical discrepancy is discussed in terms of habits of th...

The reverberation time is a key feature for describing the acoustic properties of a reverberant room. It can be computed from a measured Room Impulse Response but in many applications it has to be estimated blindly. Existing blind methods give accurate estimates but they often exhibit high variance across different speakers. In this paper, a low variance blind estimator of the reverberation tim...

Discriminant analysis is a classification method that can predict the group membership of a newly sampled observation. In discriminant analysis, classification of new observed data has an uncertainty. In this paper, the confidence degree is introduced to determine the confidence of classification of new observed data. Then, a Monte Carlo-based sensitivity analysis is applied to an assessment of...

We introduce a partial order, variance majorization, on R, which is analogous to the majorization order. A new class of monotonicity inequalities, based on variance majorization and analogous to Schur convexity, is developed.

Generalized variance is applied for determination of dispersion in a multivariate population and is a successful measure for concentration of multivariate data. In this article, we consider constructing confidence interval and testing the hypotheses about generalized variance in a multivariate normal distribution and give a computational approach. Simulation studies are performed to compare thi...

Although the distribution of frequencies of genes influencing quantitative traits is important to our understanding of their genetic basis and their evolution, direct information from laboratory experiments is very limited. In theory, different models of selection and mutation generate different predictions of frequency distributions. When a large population at mutation-selection balance passes...

In normotensive subjects no differences were found between morning and afternoon measurements of (i) mean level of intraocular pressure (IOP), (ii) variance of IOP, and (iii) rise of IOP associated with lying down. Conversely, in subjects with untreated hypertension ( UH ) morning values of (i), (ii), and (iii) were all significantly elevated. Within each group morning and afternoon levels of s...

This study investigated the within-individual relationship between mood and job satisfaction, and examined the role of personality characteristics in moderating this relationship. The design of the study involved an experience sampling methodology (ESM); 27 employees completed mood and job satisfaction surveys at four different times during the day for a period of four weeks, resulting in a tot...