Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
The literature on income concentration largely focuses on pre-tax income; the current study provides new data concerning both pre- and post-tax top income shares in Switzerland, from the 1945–2012 period. Redistribution due to progressive income taxes increased until the 1970s, and since then, the highest-income households have avoided increased cantonal income taxes by taking residence in low-tax cantons. Lower-level top income groups are less mobile than the highest-level groups, but have benefited from tax policy reforms since the 1980s. Nonetheless, despite fiscal federalism, redistribution and post-tax income concentration have been exceptionally stable in Switzerland.