Results 51 to 60 of about 1,941 (162)

Rational speculative bubbles: A critical view

open access: yesEconomic Annals, 2007
According to the theory of rational bubbles, the bubble is present whenever asset prices progressively diverge from their fundamental value, which occurs because agents expect that asset prices will continue to grow exponentially (self-fulfilling prophecies) far in the future and consistently, which promises the realization of ever larger capital gains.
openaire   +3 more sources

Sequential Detector Statistics for Speculative Bubbles

open access: yesJournal of Time Series Analysis
ABSTRACTWe propose a heteroskedasticity‐robust locally best invariant (LBI) statistic to test the hypothesis of a unit root against the alternative of an explosive root associated with speculative bubbles. Compared to existing alternatives such as Dickey‐Fuller type tests, the LBI statistic has a standard limiting distribution and greater power ...
Jörg Breitung, Max Diegel
openaire   +3 more sources

ON THE UTILITY OF SORNETTE’S CRASH PREDICTION MODEL [PDF]

open access: yesAnalele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie, 2015
Stock market crashes have been a constant subject of interest among capital market researchers. Crashes’ behavior has been largely studied, but the problem that remained unsolved until recently, was that of a prediction algorithm.
IOAN ROXANA
doaj  

What is a speculative bubble?

open access: yes, 2018
According to complexity economics, a speculative bubble is a paradigmatic case of emergence which forms from individual behaviour. In order to provide a more detailed ontological investigation of this ‘lower level’, this paper aims to understand what a transaction is and how people actualize their financial choices.
Sanso, Gloria, Connections
openaire   +1 more source

¿Inversionistas o especuladores? evidencia de burbuja especulativa en el mercado accionario Colombia, 2004-2006 ¿Inversionistas o especuladores? evidencia de burbuja especulativa en el mercado accionario Colombia, 2004-2006

open access: yesAD-minister, 2006
¿Experimentó el mercado accionario colombiano una burbuja especulativa deprecios en los últimos años? Los resultados del presente estudio así lo señalan, enparticular para el período desde inicios de 2004 hasta el momento de conclusión deeste trabajo ...
Diego Alonso Agudelo Rueda
doaj  

A Statistical Analysis of the Relationship Between Meme Stocks and Social Media

open access: yesIEEE Access
Meme stocks, driven by viral social media trends, have added new complexities to financial markets. Prior studies have explored meme stock price dynamics and investor sentiment, but the interplay between social media activity and market movements, along ...
Seungju Lee   +3 more
doaj   +1 more source

Detecting bubbles in world aluminum prices: Evidence from GSADF test

open access: yesJournal of Business Economics and Management
The aim of this research is to assess the existence of multiple bubbles in the global aluminum market by employing the Generalized Supremum Augmented Dickey-Fuller (GSADF) methodology.
Menglin Ni, Xiaoying Wang
doaj   +1 more source

Detecting Financial Bubbles with Tail-Weighted Entropy

open access: yesComputer Sciences & Mathematics Forum
This paper develops a novel entropy-based framework to quantify tail risk and detect speculative bubbles in financial markets. By integrating extreme value theory with information theory, I introduce the Tail-Weighted Entropy (TWE) measure, which ...
Omid M. Ardakani
doaj   +1 more source

Speculative bubbles and financial crises

open access: yes, 2014
The speculative bubble can be defined as the trade in high volumes at prices that are considerably at variance with intrinsic values of certain assets. The burst of speculative bubble can cause financial crisis in specific form created by situation of investment process dysfunction, when investors looking for investment refuges and refuse usual ...
Fetiniuc, V.   +2 more
openaire   +1 more source

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