چكيده لاتين :
This paper, first, represents theoretical aspects of rational
bubbles. Second, it shows one of the tests introduced to detect
rational bubbles- integration! cointegration based test.
Finally, on the empirical side, it explores existence of both
explosive and periodically collapsing bubbles in Tehran Stock
Exchange. The results reject the existence of explosive bubbles but
fail to reject the existence of periodically collapsing ones.
