scholarly journals Jump Dynamics And Volatility Components For OECD Stock Returns

2013 ◽  
Vol 29 (3) ◽  
pp. 777 ◽  
Author(s):  
Khaled Guesmi ◽  
Farhan Akbar ◽  
Irfan A. Kazi ◽  
Walid Chkili

<span style="font-family: Times New Roman; font-size: small;"> </span><p style="margin: 0in 0.5in 0pt; line-height: 11.5pt; mso-line-height-rule: exactly;" class="MsoNormal"><span lang="EN-GB" style="font-size: 10pt;"><span style="font-family: Times New Roman;">The paper applies Markov Regime Switching Model (MRSM) to investigate the volatility behaviour of twelve OECD stock markets (U.S.A, France, Ireland, Netherlands, Spain, Denmark, Norway, Sweden, Switzerland, UK, Australia and Japan) for the period 2004-2010. The results highlight two different regimes: the first regime consist of low mean high volatility whereas the second regime is categorized by high mean low volatility. We conclude that the periods of high volatility are generally synchronous to several economic and/or political events in all the developed markets during the period under investigation.</span></span></p><span style="font-family: Times New Roman; font-size: small;"> </span>

2015 ◽  
Vol 21 (2) ◽  
Author(s):  
RAPHAËL HOMAYOUN BOROUMAND ◽  
STÉPHANE GOUTTE ◽  
SIMON PORCHER ◽  
THOMAS PORCHER

<p class="ESRBODY">This paper uses a regime-switching model that is built on mean-reverting and local volatility processes combined with two Markov regime-switching processes to understand the market structure of the French fuel retail market over the period 1990-2013. The volatility structure of these models depends on a first exogenous Markov chain, whereas the drift structure depends on a conditional Markov chain with respect to the first one. Our model allows us to identify mean reverting and switches in the volatility regimes of the margins. In the standard model of cartel coordination, volatility can increase competition. We find that cartelization is even stronger in phases of high volatility. Our best explanation is that consumers consider volatility in prices to be a change in market structure and are therefore less likely to search for lower-priced retailers, thus increasing the market power of the oligopoly. Our findings provide a better understanding of the behavior of oligopolies.</p>


2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Chuangxia Huang ◽  
Xin Yang ◽  
Xiaoguang Yang ◽  
Hu Sheng

Studies on investor sentiment are mostly focused on the stock market, but little attention has been paid to the effect of investor sentiment on the return of a specific industry. This paper constructs a proxy variable to examine the relationship between investor sentiment and the return of a specific industry, using the Principle Component Analysis, and finds that investor sentiment is positively correlated with the industry return of the current period and negatively correlated with that of one lag period; we classify investor sentiment as optimistic state and pessimistic state and find that optimistic investor sentiment has a positive effect on stock returns of most industries, while pessimistic investor sentiment has no effect on them; this paper further builds a two-state Markov regime switching model and finds that sentiment has different effect on different industries returns on different states of market.


2015 ◽  
Vol 20 (5) ◽  
pp. 551-557
Author(s):  
Ming-Hsiang Chen ◽  
Chien-Pang Lin ◽  
Ming-Chang Cheng ◽  
Jo-Hsin Yuan

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