This paper shows how scale efficiency can be measured from an arbitrary parametric hyperbolic distance function with multiple outputs and multiple inputs. It extends the methods introduced by Ray (J Product Anal 11:183–194, <CitationRef CitationID="CR8">1998</CitationRef>), and Balk (J Product Anal 15:159–183, <CitationRef CitationID="CR1">2001</CitationRef>) and Ray (<CitationRef CitationID="CR9">2003</CitationRef>)...</citationref></citationref></citationref>

There is an abundance of literature on cost functions and economies of scale in the rail sector. Results from such studies are used in decisions on privatization, regulation and mergers. Different studies may, however, come to very different conclusions. In this paper we examine the results of...

An applied econometric study of aggregation, based on an unbalanced panel data set for manu-facturing plants is presented. Panel data are informative in examining aggregation of variables, parameters, and relationships empirically since they (i) allow estimation at both the micro and the macro...

Policy recommendations concerning optimal scale of production units often have serious implications for the restructuring of a sector, while tests of natural monopoly have important implications for regulatory structure. The piecewise linear frontier production function framework is becoming the...

This paper examines the productivity impact of telecommunications infrastructure and telecommunications intensity for 41 US industries over the period 1977 through 1999. A translog cost function that includes both telecommunications infrastructure and telecommunications equipment in its input...