In this work a non parametric approach is used in order to evaluate the relative efficiency of a sample of firms producers of wooden goods, in presence of non desirable outputs. As main results, we find that the consideration of several restrictions on the expansion of non desirable outputs...

The target of this paper is to review some of the concepts most frequently used to measure economic diversity at regional level, exposing their base assumptions in order to illustrate an alternative approach developed from the financial literature on efficient portfolio selection. Regional real...

The aim of this paper is to illustrate that, under certain assumptions, the influence of unemployment benefits (UB) on the efficiency in labour allocation depends crucially on the way UB affect Job search. Individual Job search is influenced by UB in a twofold way: decreasing search intensity...

This paper analizes the main aspects that have helpedto shape the process of mechanization of valencian agriculture. Thetime path of severa1 mechanization indexes have been taken intoaccount for the 1961-88 period and differences in machinery use atsubregional level have also been stu-died. A...

The completion of the European Single Market should bring out an exploitation of comparative advantages in production and trade. It is usually assumed that, given the predominance of intraeuropean trade flows in the global import figures of the European Union, efficiency gains from trade...

This paper deals with the calculation of shadow prices for two industrial wastes generated on their production processes by a sample of eighteen firms belonging to the Spanish ceramic pavements industry. These prices are used to construct a corrected index of productivity which allows for...