Burbujas especulativas: el estado de una cuestión poco estudiada

In this study, an examination is made in the literature as regards speculative bubbles. It includes both theoretical studies, aimed at understanding the origins of bubbles and their consequences, and empirical studies, directed essentially at defining econometric procedures for the detection of bubbles and to applying them. A review of the discussion is also made, including whether it is possible to consider the behavior of subjects in bubble situations as rational. The principal conclusions reached are that there exists a clear separation between theoretical and empirical studies, which has prevented advances in research into bubbles, which is also very restricted by the tendency of researchers to maintain the models and assumptions of the pioneering studies. These two reasons lead us to believe that research into bubbles will undergo significant development in the future.