A a set-valued optimization problem minC F(x), x 2 X0, is considered, where X0 X, X and Y are Banach spaces, F : X0 Y is a set-valued function and C Y is a closed cone. The solutions of the set-valued problem are defined as pairs (x0, y0), y0 2 F(x0), and are called minimizers. In particular the...

This paper proposes a likelihood ratio test for rank-dficiency of a sub- matrix of the cointegrating matrix. Special cases of the test include the one of invalid normalization in systems of cointegrating equations, the feasibility of permanent-transitory decompositions and of subhypotheses...

This note discusses the (dis-)similarities between automated inference and computer-aided decisions, at the interface of econometrics and economics. It is argued that computer-aided decisions are best suited for scientific communication. For the future, the topic of learning is singled out as...

In this paper we deal with a Fritz John type constrained vector optimization problem. In spite that there are many concepts of solutions for an unconstrained vector optimization problem, we show the possibility “to double” the number of concepts when a constrained problem is considered. In...

Let E be a linear space, K E and f : K ? R. We put in terms of the lower Dini directional derivative a problem, referred to as GMV I(f ,K), which can be considered as a generalization of the Minty variational inequality of differential type (for short, MV I(f ,K)). We investigate, in the case of...

The internationalisation pattern of district firms in the last decades can be viewed -as envisaged by traditional theory- in terms of exploitation of both firm and territorial advantage to expand into foreign markets. Rapid and intense internationalisation processes represent a means for...

Ever since the European Commission (EC) defined what “corporate social responsibility” is, European debate has taken up the definition as given. However a brief review of literature soon highlights that the adopted definition has given rise to some relevant concerns and is not without its...

This paper deals with the problem of robust estimation in a Bayesian context. We present an overview on some families of so-called robust distributions and we prove that they belong to the family of elliptical distributions. According to this results, extensions to the multivariate case can be...

Economic theory has not paid much attention to the topic of firm financing; this lack of interest was common to the two principal macroeconomic theories, the Keynesian theory and the Monetarist one. This work considers two important exceptions to the mainstream theory. The first coincides with...