Showing 51 - 60 of 717,055
Persistent link: https://www.econbiz.de/10000812601
Persistent link: https://www.econbiz.de/10002116841
Persistent link: https://www.econbiz.de/10003329444
Persistent link: https://www.econbiz.de/10003904187
Persistent link: https://www.econbiz.de/10003904272
We introduce the concept of “negative bubbles” as the mirror image of standard financial bubbles, in which positive … feedback mechanisms may lead to transient accelerating price falls. To model these negative bubbles, we adapt the Johansen …-Ledoit-Sornette (JLS) model of rational expectation bubbles with a hazard rate describing the collective buying pressure of noise traders …
Persistent link: https://www.econbiz.de/10003979508
Persistent link: https://www.econbiz.de/10008651718
Persistent link: https://www.econbiz.de/10011300508
Persistent link: https://www.econbiz.de/10010243608
We propose several multivariate variance ratio statistics. We derive the asymptotic distribution of the statistics and scalar functions thereof under the null hypothesis that returns are unpredictable after a constant mean adjustment (i.e., under the Efficient Market Hypothesis). We do not...
Persistent link: https://www.econbiz.de/10010365211