Andre Guettler

Ulm University - Department of Mathematics and Economics

Full Professor

Helmholzstrasse

Ulm, D-89081

Germany

Halle Institute for Economic Research

Research Professor

P.O. Box 11 03 61

Kleine Maerkerstrasse 8

D-06017 Halle, 06108

Germany

SCHOLARLY PAPERS

29

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11,828

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Top 4,066

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297

CROSSREF CITATIONS

129

Scholarly Papers (29)

The Impact of Public Guarantees on Bank Risk Taking: Evidence from a Natural Experiment

Review of Finance 18 (2014), 457-488
Number of pages: 48 Posted: 13 Jan 2010 Last Revised: 17 Feb 2015
Reint Gropp, Christian Gründl and Andre Guettler
Halle Institute for Economic Research, EBS Universität für Wirtschaft und Recht - EBS Business School and Ulm University - Department of Mathematics and Economics
Downloads 677 (68,969)

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banking, public guarantees, credit risk, moral hazard, market discipline

The Impact of Public Guarantees on Bank Risk Taking: Evidence from a Natural Experiment

ECB Working Paper No. 1272
Number of pages: 53 Posted: 03 Dec 2010
Reint Gropp, Andre Guettler and Christian Gründl
Halle Institute for Economic Research, Ulm University - Department of Mathematics and Economics and EBS Universität für Wirtschaft und Recht - EBS Business School
Downloads 229 (236,431)
Citation 35

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banking, public guarantees, credit risk, moral hazard, market discipline

The Impact of Public Guarantees on Bank Risk Taking: Evidence from a Natural Experiment

AFA 2011 Denver Meetings Paper
Number of pages: 50 Posted: 15 Mar 2010 Last Revised: 11 Dec 2010
Reint Gropp, Christian Gründl and Andre Guettler
Halle Institute for Economic Research, EBS Universität für Wirtschaft und Recht - EBS Business School and Ulm University - Department of Mathematics and Economics
Downloads 101 (468,569)
Citation 11

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banking, public guarantees, credit risk, moral hazard

2.

How Ing-Diba Conquered the German Retail Banking Market

Number of pages: 26 Posted: 12 Mar 2008 Last Revised: 02 Apr 2008
Andre Guettler and Andreas Hackethal
Ulm University - Department of Mathematics and Economics and Goethe University Frankfurt - Faculty of Economics and Business Administration
Downloads 924 (45,979)
Citation 2

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IT development, strategic success factors, direct bank, German financial system

3.

On Portfolio Optimization: Imposing the Right Constraints

Journal of Banking & Finance 37 (2013), 1232–1242
Number of pages: 37 Posted: 02 Jun 2010 Last Revised: 08 Jan 2019
Patrick Behr, Andre Guettler and Felix Miebs
Getulio Vargas Foundation (FGV) - Brazilian School of Public and Business Administration (EBAPE), Ulm University - Department of Mathematics and Economics and University of Applied Sciences Cologne
Downloads 859 (51,002)
Citation 18

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Portfolio Optimization, Shrinkage, Mean Squared Error, Bootstrap

On Comparing the Accuracy of Default Predictions in the Rating Industry

Empirical Economics, Vol. 34, No. 2, pp. 343-356, March 2008
Number of pages: 26 Posted: 21 Oct 2003 Last Revised: 17 Sep 2009
Andre Guettler, Walter Kraemer and Walter Kraemer
Ulm University - Department of Mathematics and Economics and University of Dortmund - Department of StatisticsUniversity of Dortmund - Department of Statistics
Downloads 614 (77,893)
Citation 1

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Credit rating, Probability forecasts, Calibration

On Comparing the Accuracy of Default Predictions in the Rating Industry

CESifo Working Paper Series No. 2202
Number of pages: 28 Posted: 08 Feb 2008
Walter Kraemer, Walter Kraemer and Andre Guettler
University of Dortmund - Department of StatisticsUniversity of Dortmund - Department of Statistics and Ulm University - Department of Mathematics and Economics
Downloads 156 (334,706)

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credit rating, probability forecasts, calibration

5.

Are Directors’ Dealings Informative? Evidence from European Stock Markets

Financial Markets and Portfolio Management, Vol. 25, No. 2, pp. 111-148, (Springer)
Number of pages: 42 Posted: 25 May 2010 Last Revised: 17 Jun 2011
Kaspar Dardas and Andre Guettler
EBS Universität für Wirtschaft und Recht - EBS Business School and Ulm University - Department of Mathematics and Economics
Downloads 689 (68,275)

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Directors’ dealings, Europe, insider hierarchy, R&D intensity

Lead-Lag Relationships and Rating Convergence Among Credit Rating Agencies

Journal of Credit Risk 7 (2011), 95-119.
Number of pages: 28 Posted: 07 Nov 2006 Last Revised: 08 May 2013
Andre Guettler
Ulm University - Department of Mathematics and Economics
Downloads 359 (148,412)

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credit rating agencies, rating intensities, rating convergence

Lead-Lag Relationships and Rating Convergence Among Credit Rating Agencies

Journal of Credit Risk 7 (2011), 95–119
Number of pages: 29 Posted: 21 Dec 2009 Last Revised: 20 Jan 2016
Andre Guettler
Ulm University - Department of Mathematics and Economics
Downloads 295 (183,290)
Citation 2

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credit rating agencies, rating intensities, rating convergence, rating timeliness

7.
Downloads 644 (74,374)
Citation 44

Gender and Banking: Are Women Better Loan Officers?

Review of Finance, Forthcoming, European Banking Center Discussion Paper No. 2009-19, CentER Discussion Paper Series No. 2009-63
Number of pages: 51 Posted: 04 Aug 2009 Last Revised: 04 Jul 2012
Thorsten Beck, Patrick Behr and Andre Guettler
City University London - The Business School, Getulio Vargas Foundation (FGV) - Brazilian School of Public and Business Administration (EBAPE) and Ulm University - Department of Mathematics and Economics
Downloads 640 (73,961)
Citation 6

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Behavioral banking, loan officers, gender, loan default, monitoring, screening

Gender and Banking: Are Women Better Loan Officers?

CEPR Discussion Paper No. DP7409
Number of pages: 49 Posted: 08 Sep 2009
Thorsten Beck, Patrick Behr and Andre Guettler
City University London - The Business School, Getulio Vargas Foundation (FGV) - Brazilian School of Public and Business Administration (EBAPE) and Ulm University - Department of Mathematics and Economics
Downloads 4 (1,104,020)
Citation 21
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Behavioral banking, gender, loan default, loan officers, monitoring, screening

Pitfalls and Perils of Financial Innovation: The Use of CDS by Corporate Bond Funds

Journal of Banking and Finance, Forthcoming
Number of pages: 35 Posted: 22 Jan 2011 Last Revised: 17 Feb 2015
Tim Adam and Andre Guettler
Humboldt University and Ulm University - Department of Mathematics and Economics
Downloads 495 (102,426)
Citation 2

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Mutual funds, management teams, financial crisis, credit default swaps, performance, market timing

The Use of Credit Default Swaps by U.S. Fixed-Income Mutual Funds

FDIC Working Paper No. 2011-01
Number of pages: 48 Posted: 09 Jan 2012
Andre Guettler and Tim Adam
Ulm University - Department of Mathematics and Economics and Humboldt University
Downloads 123 (407,157)
Citation 2

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Corporate bond fund, credit default swap, credit risk, fund performance, hedging

9.

Calibration of Internal Rating Systems: The Case of Dependent Default Events

Kredit und Kapital, Vol. 40, pp. 527-552, 2007
Number of pages: 24 Posted: 26 Nov 2005 Last Revised: 17 Sep 2009
Andre Guettler and Helge G. Liedtke
Ulm University - Department of Mathematics and Economics and BearingPoint
Downloads 546 (91,504)

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Validation, Calibration, Basel II, Rating systems

10.

The Adjustment of Credit Ratings in Advance of Defaults

Journal of Banking and Finance, Vol. 31, pp. 751-767
Number of pages: 24 Posted: 06 Jun 2005 Last Revised: 14 Mar 2008
Andre Guettler and Mark Wahrenburg
Ulm University - Department of Mathematics and Economics and Faculty of Economics and Business Administration
Downloads 502 (101,425)
Citation 2

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credit rating agencies, credit rating biases, leader-follower analysis

11.

Intraday Stock Price Effects of Ad Hoc Disclosures: The German Case

Journal of International Financial Markets, Institutions and Money, Vol. 17, No. 1, 2007
Number of pages: 24 Posted: 01 Feb 2005
Andre Guettler and Jan Muntermann
Ulm University - Department of Mathematics and Economics and University of Frankfurt
Downloads 448 (116,272)
Citation 6

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Ad hoc disclosure rules, intraday stock price adjustments, market efficiency

12.

Using Industry Momentum to Improve Portfolio Performance

Journal of Banking & Finance, Vol. 36, pp. 1414-1423. 2012
Number of pages: 30 Posted: 08 Feb 2011 Last Revised: 22 Mar 2012
Patrick Behr, Andre Guettler and Fabian Trübenbach
Getulio Vargas Foundation (FGV) - Brazilian School of Public and Business Administration (EBAPE), Ulm University - Department of Mathematics and Economics and European Business School (EBS)
Downloads 443 (117,813)
Citation 1

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Portfolio Optimization, Minimum-Variance Portfolios, Industry Momentum

13.

Rating Opaque Borrowers: Why are Unsolicited Ratings Lower?

Review of Finance, Vol. 14, pp. 263-294, 2010
Number of pages: 43 Posted: 24 Mar 2008 Last Revised: 07 Jun 2010
Christina E. Bannier, Patrick Behr and Andre Guettler
Justus-Liebig-University Giessen, Getulio Vargas Foundation (FGV) - Brazilian School of Public and Business Administration (EBAPE) and Ulm University - Department of Mathematics and Economics
Downloads 439 (119,042)
Citation 1

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Unsolicited Ratings, Self-Selection, Conservatism, Opaqueness

14.

The Informational Content of Unsolicited Ratings

Journal of Banking and Finance, Vol. 32, pp. 587-599, April 2008
Number of pages: 39 Posted: 19 May 2005 Last Revised: 17 Sep 2009
Patrick Behr and Andre Guettler
Getulio Vargas Foundation (FGV) - Brazilian School of Public and Business Administration (EBAPE) and Ulm University - Department of Mathematics and Economics
Downloads 390 (136,392)
Citation 1

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Rating agency, unsolicited ratings, event study, stock market

15.

Financial Incentives and Loan Officer Behavior: Multitasking and Allocation of Effort under an Incomplete Contract

Updated version of "SAFE Working Paper No. 62"
Number of pages: 40 Posted: 15 Jul 2014 Last Revised: 12 Jan 2021
Getulio Vargas Foundation (FGV) - Brazilian School of Public and Business Administration (EBAPE), Federal Reserve Bank of Chicago, Halle Institute for Economic Research and Ulm University - Department of Mathematics and Economics
Downloads 343 (157,105)
Citation 15

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Loan officer, incentives, loan prospecting, screening, monitoring

16.

Trust in a Trustless Network: The Case of the Bitcoin Flash Crash on May 19, 2021

Proceedings of the EUROFIDAI-ESSEC Paris December Finance Meeting 2022
Number of pages: 62 Posted: 28 Oct 2022 Last Revised: 28 Apr 2023
Tim Baumgartner and Andre Guettler
University of Ulm - Department of Mathematics and Economics and Ulm University - Department of Mathematics and Economics
Downloads 318 (170,434)

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Cryptocurrency, Bitcoin, Derivatives, Market Crash, Binance, Crypto Exchange, Trading Outage, Fraud, Extreme Volatility, Benford's Law

17.

The Impact of Downward Rating Momentum

Journal of Financial Services Research, Vol. 37, pp. 1–23, 2010
Number of pages: 34 Posted: 04 Jan 2007 Last Revised: 06 Apr 2010
Andre Guettler and Peter Raupach
Ulm University - Department of Mathematics and Economics and Deutsche Bundesbank - Research Department
Downloads 311 (174,453)

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Rating drift, Downward momentum, Credit portfolio risk, Value-at-Risk, Bond portfolio management, Calibration

18.

Using a Bootstrap Approach to Rate the Raters

Financial Markets and Portfolio Management, Vol. 19, No. 3, pp. 277-295
Number of pages: 35 Posted: 06 Jun 2005
Andre Guettler
Ulm University - Department of Mathematics and Economics
Downloads 254 (214,611)
Citation 2

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Credit rating agencies, validation, bootstrap

19.

The Influence of Sponsor, Servicer and Underwriter Characteristics on RMBS Performance

Financial Markets and Portfolio Management 25 (2011), 281-311.
Number of pages: 36 Posted: 05 Apr 2010 Last Revised: 08 May 2013
Andre Guettler, Ulrich Hommel and Julia Reichert
Ulm University - Department of Mathematics and Economics, EBS Business School and EBS Universität für Wirtschaft und Recht - EBS Business School - Department of Finance and Accounting
Downloads 253 (215,447)

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Securitization, information asymmetries, reputation

20.

Public Bank Guarantees and Allocative Efficiency

Updated version of IWH Discussion Paper 7/2015
Number of pages: 62 Posted: 23 Dec 2016 Last Revised: 11 Aug 2023
Reint Gropp, Andre Guettler and Vahid Saadi
Halle Institute for Economic Research, Ulm University - Department of Mathematics and Economics and IE Business School, IE University
Downloads 226 (240,374)
Citation 3

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Banking, Bank Guarantees, Allocative Efficiency

21.

How do Lending Relationships Affect Access to Credit and Loan Conditions in Microlending?

Journal of Banking and Finance, Vol. 35, pp. 2169-2178, 2011
Number of pages: 31 Posted: 13 Oct 2010 Last Revised: 05 Jul 2011
Andre Guettler, Patrick Behr and Annekathrin Entzian
Ulm University - Department of Mathematics and Economics, Getulio Vargas Foundation (FGV) - Brazilian School of Public and Business Administration (EBAPE) and EBS Universität für Wirtschaft und Recht - EBS Business School
Downloads 225 (241,399)
Citation 7

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lending relationships, microlending, information asymmetries, access to credit, loan conditions

22.

Has Manipulation in the VIX Decreased?

Number of pages: 73 Posted: 09 Jul 2021 Last Revised: 05 May 2023
Tim Baumgartner and Andre Guettler
University of Ulm - Department of Mathematics and Economics and Ulm University - Department of Mathematics and Economics
Downloads 189 (283,251)

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VIX, Market Manipulation, Expiration Day Effects, Volatility, Settlement Design, Term Structure

23.

Alternative Objective Functions for Quasi-Shrinkage Portfolio Optimization

European Business School Research Paper No. 10-07
Number of pages: 33 Posted: 24 Mar 2010 Last Revised: 07 Feb 2011
Andre Guettler and Fabian Trübenbach
Ulm University - Department of Mathematics and Economics and EBS Universität für Wirtschaft und Recht - EBS Business School - Department of Finance and Accounting
Downloads 178 (298,719)
Citation 2

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Covariance Estimation, Eigenvalues, Parameter Uncertainty, Portfolio Choice, Shrinkage

24.

European versus Anglo-Saxon Credit View: Evidence from the Eurozone Sovereign Debt Crisis

Number of pages: 44 Posted: 19 Dec 2016 Last Revised: 29 Apr 2018
Ulm University - Department of Mathematics and Economics, University of Ulm - Department of Mathematics and Economics, Ulm University - Department of Mathematics and Economics and Ulm University
Downloads 177 (300,130)

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Credit rating agencies, sovereign debt crisis, Eurozone, home bias

25.

Analyst Distance and Credit Rating Consistency

Number of pages: 58 Posted: 29 Jun 2020
Marc Altdörfer, Andre Guettler and Gunter Löffler
Ulm University - Department of Mathematics and Economics, Ulm University - Department of Mathematics and Economics and Ulm University
Downloads 159 (329,184)
Citation 1

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Credit ratings, Distance, Home bias, Default risk, Credit analysts

Hidden Gems and Borrowers with Dirty Little Secrets: Investment in Soft Information, Borrower Self-Selection and Competition

ECB Working Paper No. 1555
Number of pages: 46 Posted: 19 Jul 2013
Reint Gropp, Christian Gruendl and Andre Guettler
Halle Institute for Economic Research, EBS Universität für Wirtschaft und Recht and Ulm University - Department of Mathematics and Economics
Downloads 70 (589,378)

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soft information, discretionary lending, relationship lending, competition

Hidden Gems and Borrowers with Dirty Little Secrets: Investment in Soft Information, Borrower Self-Selection and Competition

Journal of Banking and Finance, Forthcoming
Number of pages: 52 Posted: 02 Jul 2013 Last Revised: 11 Oct 2017
Reint Gropp and Andre Guettler
Halle Institute for Economic Research and Ulm University - Department of Mathematics and Economics
Downloads 68 (598,990)
Citation 3

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soft information, discretionary lending, relationship lending, competition

27.

The Impact of Downward Rating Momentum on Credit Portfolio Risk

Bundesbank Series 2 Discussion Paper No. 2008,16
Number of pages: 44 Posted: 08 Jun 2016
Andre Guettler and Peter Raupach
Ulm University - Department of Mathematics and Economics and Deutsche Bundesbank - Research Department
Downloads 54 (660,978)

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Rating drift, Downward momentum, Credit portfolio risk, Value-at-Risk

28.

Is there help indeed, if there is help in need? The case of credit unions during the global financial crisis

Economic Inquiry
Number of pages: 19 Posted: 04 Sep 2021
World Bank - Financial Sector Department, Ulm University - Department of Mathematics and Economics, University of Ulm and Government of the Federative Republic of Brazil - Central Bank of Brazil
Downloads 38 (761,974)
Citation 2

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credit unions, financial crisis, financial intermediaries, labor market outcomes, relationship lending

29.

Competition between Arm's Length and Relational Lenders: Who Wins the Contest?

Number of pages: 46 Posted: 12 Dec 2022
Friedrich-Alexander-Universität Erlangen-Nürnberg, Ulm University - Department of Mathematics and Economics and Federal Reserve Bank of Chicago
Downloads 32 (807,313)

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banking, lending technology, spatial competition

Other Papers (1)

Total Downloads: 0
1.

Aggregate Insider Trading in the S&P 500 and the Predictability of International Equity Premia

Finance Research Letters, Forthcoming
Posted: 24 Jan 2023 Last Revised: 18 Mar 2023
Ulm University - Department of Mathematics and Economics, 2iQ Research GmbH, Ulm University and University of Applied Sciences Cologne

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equity risk premium; aggregate insider trading; predictive regression; informed traders