Abstract

Recent developments in econometrics emphasize the importance of testing for structural breaks in time series analysis. The typical event study of financial economics examines abnormal stock market returns around arbitrarily established dates. The paper has two objectives. The first aim is to present an application of the switching regression methodology to date structural changes in the return-generating function of financial firms. The second objective is to assess the effectiveness of the conventional event methodology in dating regime shifts associated with regulatory changes in the financial services industry. (JEL C52, G21)

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