6 research outputs found
Toxicity of potash brines to early developmental stages of Atlantic salmon (Salmo salar)
A Generalized Virial Equation of State and its Application to Vapor-Liquid Equilibria at Low Temperatures
A squared rank assessment of the difference between US and European firm valuation ratios
Financial ratios are useful in determining the financial strengths and weaknesses
of firms. The most commonly used methods for comparing firms through
financial ratios are multivariate analysis of variance (MANOVA) and multiple discriminant
analysis (MDA). These methods have been very often used for inferential
purposes when the underlying assumptions (e.g. random sampling, normality, homogeneity
of variances...) are not met. A method for comparing firm financial ratios
is proposed, it is based on squared ranks and does not require any particular assumption
because it is a descriptive method. The proposed method is devised to
explicitly consider the possible difference in variances and to take also into account
the dependence among the financial ratios. It is robust against skewness and heavy
tailness. This aspect is very important because usually financial ratios, even after
removing outliers, are highly skewed and heavy tailed. An application for studying
the difference between US and European firms is discussed