Economics at your fingertips  

Trend Changes in Stock Prices of Petrochemical Firms in the A-Share Market, China

Gaolu Zou
Additional contact information
Gaolu Zou: School of Tourism and Economic Management, Chengdu University, Chengdu, Sichuan Province, China

International Journal of Economics and Financial Research, 2017, vol. 3, issue 8, 149-156

Abstract: The paper proposes that the PetroChina listing event has significantly impacted the change in stock price trend of petrochemical firms. The study selected three firms for cases. The paper tested for the break date using both the Perron IO Model C and Zivot-Andrews Model C. Also, the study conducted a unit root test applying regular ADF and PP techniques. Data were monthly stock price series. Tests suggest that only one out of three petrochemical firm stock price series contains a break date, which occurred around 2007 and was very close to the PetroChina listing date (November 2007). The study concludes that the PetroChina listing has produced a significant shock to the stock prices on the trend function. A high degree of similarity with the PetroChina in one firm’s size and main businesses can account for the occurrence of a breakpoint on the firm’s stock price trend. Break-date tests for more petrochemical stock price series are needed to justify the proposition.

Keywords: A-share market; Break date; Cointegration; petrochemical firm; Stock price. (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations Track citations by RSS feed

Downloads: (external link) (application/pdf) (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link:

Access Statistics for this article

International Journal of Economics and Financial Research is currently edited by Dr. Abu Hassan Bin Md Isa

More articles in International Journal of Economics and Financial Research from Academic Research Publishing Group Rahim Yar Khan 64200, Punjab, Pakistan.
Series data maintained by Managing Editor ().

Page updated 2018-01-18
Handle: RePEc:arp:ijefrr:2017:p:149-156