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...

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 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...

In addition to its traditional purpose of producing food and raw materials, agriculture plays an important role in terms of supplying public goods, generally in the form of externalities deriving from farming activities. These goods may be predominantly economic and social –rural...

This paper deals with the calculation of shadow wages for family labour in agriculture. Using the existence of a duality between input distance and cost functions, we use the former to derive individual labour shadow prices for a sample of Spanish citrus fruit producers. Our results show that...

This paper deals with the calculation of shadow wages for family labour in agriculture. Using the existence of a duality between input distance and cost functions, we use the former to derive individual labour shadow prices for a sample of Spanish citrus fruit producers. Our results show that...

This paper uses directional distance functions to extend the non-parametric metafrontier approach to efficiency measurement proposed by OÕDonnell et al. (2008) to the assessment of technological differences in eco-efficiency between groups of producers. Furthermore, eco-efficiency is assessed...

Organic farming is increasing its share of total world food output and receiving growing support from policymakers concerned with agricultural sustainability issues. This paper studies the characteristics of citrus farmers in the Spanish region of Valencia that affect their probability of...