The basic approach to estimating the Gini and extended Gini indices is to approximate the Lorenz curve by a number of linear segments, and then estimate the Gini coefficients as the areas (or weighted areas) between the linear segments and the 45-degree line. We show that the estimator for the...

NOTE: This is a description of the abstract and is not the actual abstract. In-depth modeling of three quite different multivariate nonlinear multiplicative Gaussian-Markovian systems have yielded some insights into the generic benefits to be obtained by application of adaptive simulated...

Let Y (formula) denote the nth (upper) k-record value of an infinite sequence of independent, identically distributed random variables with common continuous distribution function F. We show that if the nthk-record value Y (formula) has an increasing failure rate (IFR), then Y (formula) and Y...

We take a fresh look at Theil's BLUS residuals and ask why they have gone out of fashion. All our simulation experiments indicate that tests based on BLUS residuals have higher power than those based on the more popular recursive residuals, even in those cases (structural breaks) where intuition...

A modern calculus of multivariate nonlinear multiplicative Gaussian-Markovian systems provides models of many complex systems faithful to their nature, e.g., by not prematurely applying quasi linear approximations for the sole purpose of easing analysis. To handle these complex algebraic...

This chapter discusses the formal and informal techniques that are commonly used to give quantitative answers in the field of distributional analysis. To this end, it covers subjects including inequality, poverty, and the modeling of income distributions. It also deals with parametric and...

Această carte abordează utilizarea unor procedee statistice în rezolvarea unor probleme din domeniul afacerilor. Vom prezenta câteva dintre tehnicile cantitative aplicate în analiza unor aspecte importante ale deciziilor specifice afacerilor: activitatea de producţie, vânzările,...

Due to the non-normality of stock returns, nonparametric rank tests are gaining accceptance relative to parametric tests in financial economics event studies. In rank tests, financial assets’ multiple day cumulative abnormal returns (CARs) are replaced by cumulated ranks. This paper proposes...

Very large data sets in economics are already available and will soon become commonplace. The econometric techniques currently in use may not be relevant and new techniques will have to be devised. It can be argued that most tests of significance, linear models, assumptions of normality, and...