Purpose: The objective was to increase earnings of the city of Prievidza from waste disposal fee by proactive communication – reminder (a letter) and leaflets with targeted framing. The quasi-experiment aims to find out which type of leaflet framing (an injunctive social norm or public good)...

This paper is based on the new institutional economic approach, which focuses on analysis between services features (asset specificity, outcome measurability) and their eligibility to contract out. This issue, which de facto constitutes one of the subsets of the "make or buy decision" issue, is...