We review some methods recently used in the literature to detect the existence of a certain degree of common behavior of stock returns belonging to the same economic sector. Specifically, we discuss methods based on random matrix theory and hierarchical clustering techniques. We apply these methods to a set of stocks traded at the New York Stock Exchange. The investigated time series are recorded at a daily time horizon. All the considered methods are able to detect economic information and the presence of clusters characterized by the economic sector of stocks. However, different methodologies provide different information about the considered set. Our comparative analysis suggests that the application of just a single method could not be able to extract all the economic information present in the correlation coefficient matrix of a set of stocks.
Coronnello, C., Tumminello, M., Lillo, F., Micciche', S., & Mantegna, R. (2007). Economic sector identification in a set of stocks traded at the New York Stock Exchange: a comparative analysis. In Noise and Stochastics in Complex Systems and Finance. (pp.66010T-1-66010T-12). The International Society for Optical Engineering. [10.1117/12.729619].
Autori: | Coronnello, C.; Tumminello, M.; Lillo, F.; Micciche', S.; Mantegna, R. | |
Titolo: | Economic sector identification in a set of stocks traded at the New York Stock Exchange: a comparative analysis | |
Settore Scientifico Disciplinare: | Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin) | |
Data di creazione: | 2007-05 | |
Nome del convegno: | Noise and Stochastics in Complex Systems and Finance | |
Luogo del convegno: | Firenze (I) | |
Anno del convegno: | 21-24 May 2007 | |
Data di pubblicazione: | 2007 | |
Formato: | A stampa | |
Numero di pagine: | 12 | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1117/12.729619 | |
Altre informazioni significative: | http://arxiv.org/abs/physics/0609036 | |
Citazione: | Coronnello, C., Tumminello, M., Lillo, F., Micciche', S., & Mantegna, R. (2007). Economic sector identification in a set of stocks traded at the New York Stock Exchange: a comparative analysis. In Noise and Stochastics in Complex Systems and Finance. (pp.66010T-1-66010T-12). The International Society for Optical Engineering. [10.1117/12.729619]. | |
Tipologia: | 0 - Proceedings (TIPOLOGIA NON ATTIVA) | |
Appare nelle tipologie: | 0 - Proceedings (TIPOLOGIA NON ATTIVA) |
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