Quick scan methods aim at a fast and transparent analysis of alternative solutions to planning problems in a situation of shortage of information. They generate new knowledge about solutions in early stages of decision making and in 'creative experiments' in scenario analysis. The importance of...

In this paper we investigate hedging a stock portfolio with stock index futures. Instead of defining the hedge ratio as the minimum variance hedge ratio, we consider several measures of downside risk: the semivariance according to Markowitz [ 19591 and the various lower partial moments according...

This paper addresses the issue of technogenesis and investigates in an exploratory way whether local factors are important for innovativeness of firms. Particular attention is given to the knowledge base of cities. The paper aims also to model effects of relevant local factors on innovativeness...

Meta-analysis offers an analytical framework for research synthesis based on a comparative study of research findings undertaken by different researchers. In this paper, we investigate the possibilities of applying meta-analysis to transport policy impact studies in environmental-economics. The...