Based on three German case studies in the field of waste management, the paper argues that the use of voluntary agreements does not necessarily conflict with the use of traditional command-and-control regulation within the same issue area as it is often suggested in the public and political science debate. The case studies – the voluntary agreement on the collection and recovery of spent batter...

This article presents the study of stability single-input and multiple-input systems with point or distributed state delay input saturation. By a linear transformation applied to initial system delay, is obtained without but which equivalent from view stability. Next, using sufficient conditions for global asymptotic bounded control, new are In addition, results on instability estimation region...