A multi-jurisdictional system is thought to improve, through yardstick competition, accountability. At the same time equalization programs, a common feature of multi-jurisdictional systems, are thought to be a prerequisite for both efficiency of the internal market and the equity objective of...

Recent contributions on tax competition recognize the interaction between both horizontal and vertical tax externalities in a single federation. In this paper, we extend the theoretical analysis to a framework with multiple federations (a Union). We show that the relative size of a federation in...

This paper analyzes mergers of regions in a two-tier setting with both horizontal and vertical tax competition. The merger of regions induces three effects on regional and local tax policies, which are transmitted both horizontally and vertically: i) an alleviation of tax competition at the...