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    Speculative bubbles or explosive fundamentals in stock prices? New evidence from SADF and GSADF tests

    El Montasser, G, Naoui, K and Fry, John (2018) Speculative bubbles or explosive fundamentals in stock prices? New evidence from SADF and GSADF tests. Journal of Statistics and Management Systems, 21 (1). pp. 93-106. ISSN 0972-0510

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    Abstract

    This paper uses recently developed sequential ADF tests to distinguish between rational speculative bubbles and explosive fundamentals in the US Stock market. The sequential ADF tests are shown to be more sensitive than the conventional ADF test. Results also suggest the more refined GSADF test may deliver more consistent results compared to the SADF test. We find strong evidence of explosive behavior in real stock prices that cannot be attributed to explosive fundamentals. We find renewed evidence of a stock market bubble during the dot com boom but no evidence of a bubble at other times.

    Item Type: Article
    Peer-reviewed: Yes
    Date Deposited: 30 Nov 2017 16:05
    Publisher: Taylor & Francis
    Additional Information: This is an Author Accepted Manuscript provided by Taylor & Francis of a paper accepted for publication in Journal of Statistics and Management Systems.
    Divisions:
    Subject terms: 0104 Statistics, 1503 Business And Management
    URI: https://e-space.mmu.ac.uk/id/eprint/619504
    DOI: https://doi.org/10.1080/09720510.2017.1401799
    ISSN 0972-0510

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