We analyze productivity spillovers from MNC subsidiaries to domestic Romanian companies, both within (horizontal spillovers) and across industries (vertical spillovers). We separate labor market spillovers from other horizontal spillovers and define the supply-backward linkage spillover that...

In this article we show how symmetry allows the derivation of an in_nite number of exact relations between the derivatives of the third Jacobi theta function, which is a special kind of series. Despite the transcendental nature of the theta function in general, the relations involve linear...

The purpose of this paper is to illustrate the use of statistical techniques to evaluate the effectiveness of voluntary policy instruments for waste management. The voluntary character of these instruments implies that latent characteristics, unobserved by the analyst, might influence the...

This study investigated to what extent the cognitive worries of anxious persons impair test performance in both an educational and a personnel selection context. A distinction was made between two types of cognitive anxiety, namely Self-Referenced Anxiety, where oneself is held as the critical...

In this paper we reconsider the estimated deadweight costs for the emerging countries implied by the mean-variance portfolio model developed by Cooper and Kaplanis (1994) and general- ized by Sercu and Vanp¶ee (2007). We show both theoretically and empirically that estimated implicit investment...

In this paper we show that hedge fund returns may suffer from excess smoothness, positive kurtosis and negative skewness. We argue that these distribution properties cause standard mean-variance statistics to underestimate the true variability and beta, and overrate the true performance. We...

This paper presents a review of the available literature on solid waste management problems, with a particular focus on vehicle routing problems. The available papers are classified into different catego-ries with the purpose of providing the reader with a guide that facilitates his/her search...