This paper has two ambitions. First, we review the economic literature on tax coordination. Second, we argue that the taxation of capital is not an issue of efficiency, but instead an issue of equity. In particular, capital tax coordination can alter the vertical distribution of income between the production factors capital and labour. Capital is in perfectly elastic supply in a small open economy. Therefore the tax incidence falls to the immobile factor, labour. By contrast, capital is in inelastic supply at the international level, and therefore the capital tax incidence falls completely on capital, without welfare losses of taxation. (author's abstract) / Series: Discussion Papers SFB International Tax Coordination

Series: Discussion Papers SFB International Tax Coordination

(kein abstract vorhanden) / Series: Discussion Papers SFB International Tax Coordination

In a model with a unionised immobile labour force we analyse how labour taxes and transfers towards unemployed workers are optimally cho- sen when a welfare maximising government faces oligopolistic and partly mobile firms. We consider two polar types of government: one whose objective consists of maximising the sum of domestic producer's and con- sumers' surplus and one that aims at maximising employed and unem- ployed workers' payoffs. We show that depending on the combination of foreign labour costs, the degree of domestic union bargaining power, and the sunk costs of relocation, the former type of government may choose to set taxes so as to induce an outward relocation of production. (author's abstract) / Series: Discussion Papers SFB International Tax Coordination

In a model with a unionised immobile labour force we analyse how labour taxes and transfers towards unemployed workers are optimally chosen when a welfare maximising government faces oligopolistic and partly mobile firms. We consider two polar types of government: one whose objective consists of aximising the sum of domestic producer's and consumers' surplus and one that aims at maximising employed and unemployed workers' payoffs. We show that depending on the combination of foreign labour costs, the degree of domestic union bargaining power, and the sunk costs of relocation, the former type of government may choose to set taxes so as to induce an outward relocation of production. (author's abstract) / Series: Department of Economics Working Paper Series

Die vorliegende Arbeit besteht aus vier Aufsätzen zum Thema Besteuerung, welche sich in drei Themenblöcke unterteilen lassen: Die ersten beiden Aufsätze dieser Arbeit (Maiterth/Chirvi 2015 sowie Chirvi 2019) widmen sich dem deutschen Ehegattensplitting, der dritte Beitrag (Chirvi/Maiterth 2019) behandelt die Besteuerung gesetzlicher Renten in Deutschland und der vierte Aufsatz (Chirvi/Schneider 2019) untersucht Präferenzen bzgl. der Besteuerung von Vermögen in den USA. Eine Aufteilung anhand der behandelten Steuerarten macht die Arbeit noch übersichtlicher: So behandeln die ersten drei Aufsätze jeweils Aspekte der Einkommensteuer, während sich der vierte Beitrag verschiedenen Arten der Vermögensbesteuerung widmet. Es lässt sich ergänzen, dass die Aufsätze zur Einkommensteuer sehr eng mit dem deutschen Steuerrecht verbunden sind. Sie beschäftigen sich mit existierenden Regelungen (§ 26 sowie 32a EStG zum Ehegattensplitting bzw. § 10 sowie 22 EStG zur Rentenbesteuerung) und deren Auswirkungen. Dies gilt insbesondere für die Beiträge Maiterth/Chirvi (2015), in dem ein Forschungs- und Rechtsprechungsüberblick zum Thema Ehegattensplitting geliefert wird, sowie Chirvi/Maiterth (2019), in dem eine potentielle Doppel- oder Minderbesteuerung gesetzlicher Renten durch das AltEinkG untersucht wird. Der Aufsatz Chirvi (2019) untersucht Arbeitsangebotswirkungen des Ehegattensplittings und ist daher etwas weniger eng mit dem deutschen Recht verknüpft, da sich zumindest ähnliche Regelungen auch in anderen Ländern finden. Der Beitrag zur Vermögensbesteuerung, Chirvi/Schneider (2019), untersucht dagegen Präferenzen in Bezug auf – bis auf die Nachlasssteuer („estate tax“) – nicht existierende Vermögensteuern in den USA. Zwei der Aufsätze wurden in der Zeitschrift Steuer und Wirtschaft publiziert, die anderen beiden wurden in der arqus Working-Paper-Reihe veröffentlicht. / This dissertation consists of four papers on taxation that can be divided into three different subject areas: The first and the second paper (Maiterth/Chirvi 2015 as well as Chirvi 2019) deal with the ‘income splitting’, i.e. the taxation of married couples in Germany. The third paper (Chirvi/Maiterth 2019) analyzes effects of a reform regarding the transition to downstream taxation of public pensions. Finally, the last paper (Chirvi/Schneider 2019) examines preferences for the taxation of wealth in the United States. While the first three papers analyze (the effects of) specific regulations within the German income tax code (income splitting in Art. 26 and 32a of the German income tax code; the taxation of public pensions in Art. 10 and 22 of German income tax code), the fourth essay is about partially hypothetical types of capital taxation. Maiterth/Chirvi (2015) review the literature on the topic in the areas of public economics, business taxation and tax law and compile arguments for and against the income splitting. As many researchers point out that the income splitting may lead to disincentives for married women to work, Chirvi (2019) empirically analyzes its labor supply effects based on a new approach. Chirvi/Maiterth (2019) evaluate whether the AltEinkG, a reform that lead to a successive transition to downstream taxation, results in under- or double taxation of public pensions in Germany. They develop a measure and subsequently estimate potential under- or double taxation based on official income tax data. Chirvi/Schneider (2019) are interested in preferences regarding capital taxation and conduct a survey-experiment on mTurk to reveal whether preferences depend on the type of tax and/or attributes of assets and personal characteristics. Two of these papers have already been published in the scientific journal Steuer und Wirtschaft, the others can be found in the arqus working-paper series.