This article discusses models in data envelopment analysis (DEA) relaxing the standard convexity assumptions. The basic model treats mutually incomparable pairs of sets to be generated by a procedure proposed earlier. Each pair consists of a consumption set and a production set of feasible...

Four different programming models dealing with the agricultural sectors in Canada, The Netherlands, Sweden and Denmark are analysed. The purpose is to construct a knowledge base for the development of a new sector model for Danish agriculture. This analysis has created a valuable set of...

CRAM is an aggregate holding based sector model of Danish agriculture. The model is developed at Unit of Economics (now dissolved) at KVL. The purpose of CRAM is to analyse how Danish agriculture reacts to various socio-political measures. CRAM describes Danish agriculture for every year over a...

The purpose of this paper is to study the effects of introducing information systems into a model featuring managerial incentive problems and investment opportunities that are mutually exclusive over time. In a principal-agent model in which a manager (agent) has superior information about...

In perfectly competitive markets taxes and quotas are fully equivalent measures for environmental protection. Based on this regulators' revealed preferences for quotas over that of fees finds its explanation in the procedures and spirits of political decision making. This paper offers another...

In the competition between supply chains, governance structure and coordination mechanisms can be as important as cost-efficiency. Flexible and non-committing contracts among upstream suppliers in cooperative alliances may lead to lower chain surplus through internal competition and renders the...

Super efficiency evaluations are introduced along the lines of the potential improvements approach in Bogetoft and Hougaard (1999). Both a reference selection and a related super efficiency index is defined. The new (potential slack) super efficiency index is compared to a Farrell-based super...

This paper presents the results of an empirical analysis of technological change and economies of scale in Danish agriculture. The estimation is based on a multi-output, multi-input translog cost function and covers the period 1973-1995. The results show that technological change varied...