In a study investigating motivational factors in group brainstorming, we investigated the impact on performance of regulatory fit/nonfit (based on the group’s focus and task strategy). All members of three-person groups were placed in either a promotion focus or a prevention focus and then were all given either an eager strategy or a vigilant strategy for performing a brainstorming task (with a...

Since the advent of evolution strategies many attempts have been done to improve the mutation operator [7]. The first enhancement could be seen in the introduction of a flexible step size. As a logical consequence later n step sizes, one per variable, were used. Highest flexibility is achieved with the correlated mutation but also quadratic growth of the number of strategy parameters [8]. A new...

In order to reduce the risk of complete failure, research managers often adopt a parallel strategy by simultaneously funding several R&D activities and several research teams within each activity. The parallel strategy requires the allocation of an available budget to a number of R&D activities, the determination of the number of research teams within each activity and the amount of funding the...

The Besley-Coate model of representative democracy has the problem of multiple equilibria (Besley-Coate, 1997). We show that requiring the Besley-Coate political equilibria to be iteratively undominated at the voting stage re nes the set of (pure strategy) political equilibrium outcomes only for those cases where at least four candidates stand for election. This note complements the results of ...

The study aims to increase our knowledge of how a retailer can survive in recession economy by changing its competitive strategy. In particular, the study is to identify those strategies that can help retailers to maintain successful performance despite turbulence in the operational environment. A case study approach is employed to explore a whole picture of a successful retailer’s actions and ...