Faculty Profile

Christopher Bleibtreu

Associate Professor - Department of Accounting, Auditing and Business Analytics


Christopher Bleibtreu holds a Doctoral degree from the University of Konstanz and was Junior Professor in Accounting at the Department of Economics at the University of Konstanz until 2018. Since 2019, he is Associate Professor in Accounting at the Department of Accounting, Auditing and Business Analytics at BI Norwegian Business School. His research interests are (mainly) analytical reserach in auditing, corporate governance, and financial accounting.


Bleibtreu, Christopher & Stefani, Ulrike (2018)

Auditor Incentives and the Structure of the Audit Market – A Basic Model for Investigating Simultaneous Effects of Audit Market Regulations

BFuP. Betriebswirtschaftliche Forschung und Praxis, 70(4), s. 416- 439.

For decades, legislators worldwide have been discussing the merits of regulating their national audit markets. In this debate, the focus has primarily been on the regulations’ effects on incentives, both those of preparers of financial statements to report truthfully and those of auditors to detect errors or even fraud and to correctly report their findings to the public. For some of the proposed measures, the empirical evidence as to whether they indeed improve such incentives remains inconclusive. In addition, there is a concern that certain regulations could negatively affect the structure of the audit market. Changes in the market structure, in turn, can either attenuate or reinforce the regulations’ effects on preparers’ and auditors’ incentives. To a large extent, this unintended side-effect has been neglected in the discussions. We adapt a spatial competition model to the audit market. This model allows simultaneously analyzing the incentive and market structure effects resulting from regulations and thus determining their overall impact

Bleibtreu, Christopher & Stefani, Ulrike (2018)

The Effects of Mandatory Audit Firm Rotation on Client Importance and Audit Industry Concentration

Accounting Review, 93(1), s. 1- 27. Doi: 10.2308/accr-51728

Recently, a system of audit firm rotation has been implemented for the audits of listed companies conducted in the European Union (EU). In the U.S., in contrast, the regulator decided against such rotation. Whereas proponents argue that rotation would strengthen independence and decrease audit market concentration, opponents stress the importance of auditors' learning effects, which would be eliminated by a change in auditors. In extending the market matching model of Salop (1979), we provide an analysis that integrates these contradictory views. We assume that both auditors' industry expertise and their experience in auditing a client decrease audit costs. We investigate the bidding strategies applied to re-acquire clients that were lost due to rotation, auditors' profit contributions, the equilibrium number of auditors (i.e., audit market concentration), and the economic importance of specific clients. Our findings indicate that the regulators' goals of simultaneously decreasing client importance and audit market concentration are in direct conflict and, therefore, the rotation system might have unintended consequences. Our model, thus, suggests how different institutional parameters give rise to economic forces that can support diverging decisions regarding the implementation of MAR.

Stefani, Ulrike & Bleibtreu, Christopher (2013)


Klamar, Nils; Sommer, Ulrich & Weber, Ingo (red.). Der effiziente M&A Prozess

Bleibtreu, Christopher & Stefani, Ulrike (2012)

Auditing, Consulting, and Audit Market Concentration

Zeitschrift für Betriebswirtschaft (ZfB), 82, s. 41- 70. Doi: 10.1007/s11573-012-0597-5

Bleibtreu, Christopher & Mohrmann, Ulf (2019)

Do Audit Clients Prefer Watchdogs or Lapdogs? The Effect of Strictness on Audit Offices’ Market Shares

[Academic lecture]. EARNet Symposium.

Bleibtreu, Christopher (2019)

Does mandatory rotation harm or benefit non-Big 4 audit firms? An analytical investigation

[Academic lecture]. Annual Congress of the European Accounting Association.

Bleibtreu, Christopher & Stefani, Ulrike (2018)

The interdependence between the structure of the audit market and financial reporting quality

[Academic lecture]. ACA Symposium.

Bleibtreu, Christopher & Stefani, Ulrike (2018)

The interdependence between the structure of the audit market and financial reporting quality

[Academic lecture]. EIASM Workshop on Audit Quality.

Bleibtreu, Christopher & Stefani, Ulrike (2018)

The interdependence between the structure of the audit market and financial reporting quality

[Academic lecture]. AAA Annual Meeting.

Bleibtreu, Christopher (2018)

The effects of mandatory audit firm rotation on Big 4 and non-Big 4 audit firms' market shares and client importance

[Academic lecture]. Annual Accounting Conference.

Academic Degrees
Year Academic Department Degree
2012 University of Konstanz Dr.rer.pol
2008 University of Konstanz MSc in Economics
Work Experience
Year Employer Job Title
2019 - Present BI Norwegian Business School Associate Professor in Accounting
2018 - 2018 BI Norwegian Business School Adjunct Associate Professor in Accounting
2012 - 2018 University of Konstanz Junior Professor in Accounting
2015 - 2015 VU University Amsterdam Visiting Researcher
2015 - 2015 NHH - Norwegian School of Economics Visiting Scholar
2008 - 2012 University of Konstanz Research Assistant