Schenkelberg, Sabine (2018). Tax Differentials between US and European Firms. PhD thesis, Universität zu Köln.


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In a globalized world, US and European firms compete with each other. Therefore, it is of particular interest whether one group faces a competitive (dis)advantage due to tax differentials. This thesis aims to provide a better understanding of tax differentials and the determinants therof between US and European firms. The first essay “Alternative Effective Tax Rate Measures – An Assessment of Differences between US and European Firms” is a single author paper. The paper evaluates the information content of five different ETR measures as proxies for tax expenditures and demonstrates their differences between US and European firms. The second essay “Do US Firms Pay Less Tax than their European Peers? On Firm Characteristics, Profit Shifting Opportunities, and Tax Legislation as Determinants of Tax Differentials” is co-authored by Michael Overesch and Georg Wamser. The essay builds on the first essay, as it uses different ETR measures to analyze the tax differentials between listed US and European firms. With a more detailed approach it further investigates whether tax differentials between US and European firms can be attributed to firm characteristcs, profit shifting opportunities and home country tax legislation. The final essay “The Cadbury Schweppes Judgment and its Implications on Profit Shifting Activities within Europe” is a single-author paper and analyzes the impact of amendments to European CFC rules on profit shifting activities of European-owned subsidiaries compared to US-owned subsidiaries.

Item Type: Thesis (PhD thesis)
CreatorsEmailORCIDORCID Put Code
AuthorOveresch, MichaelUNSPECIFIED
AuthorWamser, GeorgUNSPECIFIED
URN: urn:nbn:de:hbz:38-89977
Date: June 2018
Language: English
Faculty: Faculty of Management, Economy and Social Sciences
Divisions: Faculty of Management, Economics and Social Sciences > Business Administration > Accounting and Taxation > Professorship for Business Administration and Business Taxation
Subjects: Management and auxiliary services
Uncontrolled Keywords:
Tax DifferentialsEnglish
Effective Tax RateEnglish
Tax AvoidanceEnglish
Tax ExpensesEnglish
Tax ReformEnglish
International TaxationEnglish
Difference-in-Differences AnalysisEnglish
Pair MatchingEnglish
Cadbury Schweppes JudgmentEnglish
Profit ShiftingEnglish
Date of oral exam: 30 October 2018
NameAcademic Title
Overesch, MichaelProf. Dr.
Homburg, CarstenProf. Dr.
Refereed: Yes


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