Klassifizierung von Hedge-Fonds durch das k-means Clustering von Self-Organizing Maps: eine renditebasierte Analyse zur Selbsteinstufungsgüte und Stiländerungsproblematik
[Classifying Hedge Funds using k-means Clustering of Self-Organizing Maps: a return-based analysis of misclassification and the problem of style creep]
AbstractThrough an implementation of the 2-level-approach due to Vesanto & Alhoniemi (2000), this paper addresses a number of problems typically seen when visualized interpretation of Self Organizing Maps (SOM) are applied to derive a systematic classification system in the hedge fund literature. Normally, a trained SOM does not result in an exact depiction of the detected structures of the input data, and is therefore challenging for visual interpretations. The 2-level-approach overcomes this problem and assures a consistent clustering of neighboring output units, and therefore an objective classification scheme. Through an empirical application, such an objective classification is derived. Building on this, further analyses concerning the misclassification and style creep problems are conducted. Within the ten-year sample period (31.01.1999 to 31.12.2008), which comprises 2789 hedge funds, organized in eleven strategies, six classes can be identified. This six-class taxonomy is fairly robust to different sub-sample periods, topologies and data-samples. According to the classification system applied here, it is shown that most of the analyzed hedge funds are inconsistent in their self-declared strategies. Furthermore, evidence of undisclosed trading style changes over time is identified – specifically, it is shown that misclassified hedge funds are more likely to change their trading style.
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Bibliographic InfoPaper provided by University Library of Munich, Germany in its series MPRA Paper with number 16939.
Date of creation: 25 Aug 2009
Date of revision:
Self-Organizing Maps; Clustering; Klassifzierung; Hedge-Fonds; Style Creep;
Find related papers by JEL classification:
- G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
- G23 - Financial Economics - - Financial Institutions and Services - - - Non-bank Financial Institutions; Financial Instruments; Institutional Investors
- C45 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - Neural Networks and Related Topics
- C81 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs - - - Methodology for Collecting, Estimating, and Organizing Microeconomic Data; Data Access
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- Kim, Moon & Shukla, Ravi & Tomas, Michael, 2000. "Mutual fund objective misclassification," Journal of Economics and Business, Elsevier, Elsevier, vol. 52(4), pages 309-323.
- Carl Ackermann & Richard McEnally & David Ravenscraft, 1999. "The Performance of Hedge Funds: Risk, Return, and Incentives," Journal of Finance, American Finance Association, American Finance Association, vol. 54(3), pages 833-874, 06.
- Stephen J. Brown & William N. Goetzmann, 2001.
"Hedge Funds With Style,"
NBER Working Papers
8173, National Bureau of Economic Research, Inc.
- Stephen Brown & William Goetzmann, 2001. "Hedge Funds With Style," Yale School of Management Working Papers, Yale School of Management ysm21, Yale School of Management, revised 01 Apr 2008.
- Stephen J. Brown & William N. Goetzmann, 2001. "Hedge Funds With Style," Yale School of Management Working Papers, Yale School of Management ysm177, Yale School of Management.
- William N. Goetzmann & Stephen J. Brown, 1998.
"Mutual Fund Styles,"
Yale School of Management Working Papers, Yale School of Management
ysm40, Yale School of Management.
- Fung, William & Hsieh, David A, 2001. "The Risk in Hedge Fund Strategies: Theory and Evidence from Trend Followers," Review of Financial Studies, Society for Financial Studies, Society for Financial Studies, vol. 14(2), pages 313-41.
- Ohlms, Christian, 2006. "Aktives Investmentportfolio-Management : Opitmierung von Portfolios aus derivatebasierten dynamischen Investmentstrategien," Publications of Darmstadt Technical University, Institute for Business Studies (BWL), Darmstadt Technical University, Department of Business Administration, Economics and Law, Institute for Business S 25428, Darmstadt Technical University, Department of Business Administration, Economics and Law, Institute for Business Studies (BWL).
- Mangiameli, Paul & Chen, Shaw K. & West, David, 1996. "A comparison of SOM neural network and hierarchical clustering methods," European Journal of Operational Research, Elsevier, Elsevier, vol. 93(2), pages 402-417, September.
- Glenn Milligan & Martha Cooper, 1985. "An examination of procedures for determining the number of clusters in a data set," Psychometrika, Springer, Springer, vol. 50(2), pages 159-179, June.
- Mark Mitchell, 2001. "Characteristics of Risk and Return in Risk Arbitrage," Journal of Finance, American Finance Association, American Finance Association, vol. 56(6), pages 2135-2175, December.
- Fung, William & Hsieh, David A, 1997. "Empirical Characteristics of Dynamic Trading Strategies: The Case of Hedge Funds," Review of Financial Studies, Society for Financial Studies, Society for Financial Studies, vol. 10(2), pages 275-302.
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