“…"Five German leading parties and their coalitions are evaluated from the viewpoint of direct democracy. For this purpose, the positions of the parties on over 30 topical issues are compared with the results of polls of public opinion. …”

“…Many of the robust influences emanate from relatively new theories such as elements of direct democracy, social interaction effects, moral aspects, and happiness, and from the institutional literature on the relative importance of specific institutions for economic performance. …”