Handelssanktionen — Wirkungen und Nebenwirkungen

Wirtschaftsdienst - Länder setzen immer wieder Wirtschaftssanktionen gegen andere Nationen ein, um diese zu einem bestimmten Handeln zu bewegen. Ein verändertes Verhalten soll dadurch...     

Target and technical efficiency in DEA: controlling for environmental characteristics

In this paper we propose a target efficiency DEA model that allows for the inclusion of environmental variables in a one stage model while maintaining a high degree of discrimination power. The model estimates the impact of managerial and environmental factors on efficiency simultaneously. A decomposition of the overall technical efficiency into two components, target efficiency and environmental efficiency, is derived. Estimation of target efficiency scores requires the solution of a single large non-linear optimization problem and provides both a joint estimation of target efficiency scores from all DMUs and an estimation of a common scalar expressing the environmental impact on efficiency for each environmental factor. We argue that if the indices on environmental conditions are constructed as the percentage of output with certain attributes present, then it is reasonable to let all reference DMUs characterized by a composed fraction lower than the fraction of output possessing the attribute of the evaluated DMU enter as potential dominators. It is shown that this requirement transforms the cone-ratio constraints on intensity variables in the BM-model (Banker and Morey 1986) into endogenous handicap functions on outputs. Furthermore, a priori information or general agreements on allowable handicap values can be incorporated into the model along the same lines as specifications of assurance regions in standard DEA.

Homo oeconomicus and homo politicus in Ecological Economics

The model of homo oeconomicus has been criticised in Ecological Economics. We discuss this critique and alternative approaches that have been developed in the literature. In contrast to these approaches, which are based on Arrow's concept of the Social Welfare Function, psychology, biology, and general considerations, we propose a concept of homo politicus that is founded in political philosophy. We show that this concept is suitable for normative purposes of Ecological Economics. At the same time, we demonstrate in a case study that the concept has empirical relevance in explaining real political processes.     

Connecting capabilities in highly unequal developing countries: The case of the Square Kilometre Array telescope in South Africa

ABSTRACT

Innovation and skills development require interactive capabilities to function effectively. Interactive capabilities mediate between skills supply and skills demand actors in an innovation system, and in the knowledge economy more broadly. This article investigates such interactive capabilities, and the manner in which they facilitate labour market alignment. Within a case-study focus on the Square Kilometre Array (SKA) telescope in South Africa, we investigate how organisational capabilities, structures, and mechanisms facilitate or constrain interaction between the SKA and its network partners, including universities, firms, intermediaries, and a technical college. This illustrates how pockets of excellence within an unequal South African skills and innovation landscape were effectively connected in order to build a critical mass of skills and technologies that were highly competitive on the international stage. This shows how, in highly unequal developing countries, interactive capabilities form a lever for access to the global science and technology frontier.