Perhaps the most difficult aspect of constructing a multi-dimensional index is that of choosing weights for the components. This problem is often bypassed by adopting the ‘agnostic’ option of equal weights, as in the human development index. This is an annual ranking of countries produced by...

Beta is a widely used quantity in investment analysis. We review the common interpretations that are applied to beta in finance and show that the standard method of estimation - least squares regression - is inconsistent with these interpretations.lt;brgt;lt;brgt;We present the case for an...

This paper presents a very simple one variable model, apparently not previously studied, of a bank account with no random elements yet which displays chaos. Interest is periodically added to the account and when the balance exceeds a pre-set limit then a fixed amount is removed into another...