Advanced Search
MyIDEAS: Login to save this article or follow this journal

Non-linear Speculative Bubbles in the Pakistani Stock Market


Author Info

  • Ehsan Ahmed

    (James Madison University, Harrisonburg, VA, USA.)

  • J. Barkley Rosser, Jr.

    (James Madison University, Harrisonburg, VA, USA.)


Since 1987 many stock markets of the world have experienced volatility. This has been true of many emerging stock markets. Our study of daily stock market data from Pakistan between June 1987 and May 1993 finds the results to be consistent with the impression of great volatility and unpredictability thought to be common in such emerging markets. We used the VAR technique to estimate a "presumed" fundamental on stock indices using lagged first differences of natural logs of daily exchange rates and stock indices. We used the Hamilton switching model and associated Walk test to see if such speculative trends were present. We were significantly unable to rule them out. We then tested for ARCH effects, whose presence we failed to reject. We then used ARCHgenerated residuals to apply the BDS test of general non-linear structure. We failed to reject the lack of such non-linear structure quite significantly. Thus, the Pakistani stock market during the period of study seems to have exhibited quite complex dynamics, along with apparently strong trends that may indicate the presence of speculative bubbles. This has many important implications for Pakistani as well as other emerging markets.

Download Info

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
File URL:
Download Restriction: no

Bibliographic Info

Article provided by Pakistan Institute of Development Economics in its journal The Pakistan Development Review.

Volume (Year): 34 (1995)
Issue (Month): 1 ()
Pages: 25-41

as in new window
Handle: RePEc:pid:journl:v:34:y:1995:i:1:p:25-41

Contact details of provider:
Postal: P.O.Box 1091, Islamabad-44000
Phone: (92)(51)9248051
Fax: (92)(51)9248065
Web page:
More information through EDIRC

Related research



No references listed on IDEAS
You can help add them by filling out this form.


Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
as in new window

Cited by:
  1. Fazal Husain, 1997. "The Random Walk Model in the Pakistani Equity Market: An Examination," The Pakistan Development Review, Pakistan Institute of Development Economics, vol. 36(3), pages 221-240.
  2. Husain, Fazal & UPPAL, Jamshed, 1999. "Stock Returns Volatility in an Emerging Market: The Pakistani Evidence," MPRA Paper 5270, University Library of Munich, Germany.
  3. Iqbal, Javed & Haider, Aziz, 2005. "Arbitrage pricing theory: evidence from an emerging stock market," MPRA Paper 8699, University Library of Munich, Germany.
  4. Attiya Y. Javed & Ayaz Ahmed, 1999. "The Response of Karachi Stock Exchange to Nuclear Detonation," The Pakistan Development Review, Pakistan Institute of Development Economics, vol. 38(4), pages 777-786.
  5. Salman Syed Ali & Khalid Mustafa, 2001. "Testing Semi-strong Form Efficiency of Stock Market," The Pakistan Development Review, Pakistan Institute of Development Economics, vol. 40(4), pages 651-674.


This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.


Access and download statistics


When requesting a correction, please mention this item's handle: RePEc:pid:journl:v:34:y:1995:i:1:p:25-41. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Khurram Iqbal).

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.