Constitutional Amendment and Stock Prices: Event Study Evidence from China

2020 ◽  
Author(s):  
Chao Yan
Keyword(s):  
Event Study ◽  
Stock Prices ◽  
Constitutional Amendment

Market reactions to the inclusion of people with disabilities

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Claudia Araceli Hernández González
Keyword(s):  
Event Study ◽  
Stock Prices ◽  
Stock Price ◽  
Abnormal Returns ◽  
People With Disabilities ◽  
Market Reactions ◽  
Content Type ◽  
Study Methodology ◽  
Research Advance ◽  
The Impact

PurposeThis study aims to provide evidence of market reactions to organizations' inclusion of people with disabilities. Cases from financial journals in 1989–2014 were used to analyze the impact of actions taken by organizations to include or discriminate people with disabilities in terms of the companies' stock prices.Design/methodology/approachThis research is conducted as an event study where the disclosure of information on an organization's actions toward people with disabilities is expected to impact the organization's stock price. The window of the event was set as (−1, +1) days. Stock prices were analyzed to detect abnormal returns during this period.FindingsResults support the hypotheses that investors value inclusion and reject discrimination. Furthermore, the impact of negative actions is immediate, whereas the impact of positive actions requires at least an additional day to influence the firm's stock price. Some differences among the categories were found; for instance, employment and customer events were significantly more important to a firm's stock price than philanthropic actions. It was observed that philanthropic events produce negative abnormal returns on average.Originality/valueThe event study methodology provides a different perspective to practices in organizations regarding people with disabilities. Moreover, the findings in this research advance the literature by highlighting that organizations should consider policies and practices that include people with disabilities.

scholarly journals Is ESG Relevant to Electricity Companies during Pandemics? A Case Study on European Firms during COVID-19

2022 ◽  
Vol 14 (2) ◽  
pp. 852
Author(s):  
Florin Teodor Boldeanu ◽  
José Antonio Clemente-Almendros ◽  
Ileana Tache ◽  
Luis Alberto Seguí-Amortegui
Keyword(s):  
Event Study ◽  
Stock Prices ◽  
Initial Phase ◽  
Negative Impact ◽  
Abnormal Returns ◽  
Negative Influence ◽  
Electricity Sector ◽  
Renewable Electricity ◽  
Study Approach

The electricity sector was negatively impacted by the coronavirus disease (COVID-19), with considerable declines in consumption in the initial phase. Investors were in turmoil, and stock prices for these companies plummeted. The aim of this paper is to demonstrate the significant negative influence of the pandemic on abnormal returns for the electricity sector, specifically for traditional and renewable companies and the influence of ESG scores, using the event study approach and multi-variate regressions. Our results show that the pandemic indeed had a negative impact on the electricity sector, with renewable electricity companies suffering a sharper decline than traditional ones. Moreover, we find that ESG pillar scores affected electricity companies differently and are sector-specific. For renewable electricity companies, the returns were positively influenced by the environmental ESG scores and negatively by governance ESG scores.

scholarly journals Harga Saham Sebelum dan Sesudah Stock Split

2020 ◽  
Vol 3 (2) ◽  
pp. 390-395
Author(s):  
Junita Putri Rajana Harahap ◽  
Murni Dahlena Nasution
Keyword(s):  
Event Study ◽  
Capital Market ◽  
Stock Prices ◽  
Stock Price ◽  
Research Method ◽  
Price Difference ◽  
Significant Difference ◽  
Stock Split ◽  
Before And After ◽  
A Company

The stock split causes the stock price to be cheaper so that it will attract potential investors to buy the stock. This research was conducted to determine when it is time for a company to do a stock split, information available on the capital market can be used by investors for consideration before investors make a decision to invest in shares. The study aims to determine the changes that occur in stock prices before and after the stock split policy by the company. The research method used in this research is event study research with a quantitative approach. This study examines how significant the stock price difference is after a stock split policy. The sample used in this study were all companies that carried out the 2016-2018 stock split policy. The results of research on companies that become samples have shown that the average stock price before the announcement of the stock split policy has no significant difference with the average stock price after the announcement of the stock split policy Keywords : Stock Price, Stock Split

scholarly journals Is the market swayed by press releases on corporate governance? Event study on the Eurostoxx banks

2018 ◽  
Vol 15 (3) ◽  
pp. 23-31 ◽  
Author(s):  
Marina Brogi ◽  
Valentina Lagasio
Keyword(s):  
Corporate Governance ◽  
Event Study ◽  
Stock Prices ◽  
Investment Decisions ◽  
Press Releases ◽  
European Banks ◽  
Study Methodology ◽  
The Impact ◽  
Governance Disclosure ◽  
Event Study Methodology

Are press releases on Corporate Governance price sensitive? What is the impact of Corporate Governance information on stock prices of banks? This paper addresses these questions by applying an event study methodology on 70 press releases published by the Euro area banks listed on the Eurostoxx banks Index, from 2007 to 2016. Systemic shocks are explored as well idiosyncratic ones. Our results show that investment decisions are significantly but negatively influenced by the disclosure of a press release on corporate governance as if this kind of news leads investors to perceive the banks’ prospects negatively. The best of our knowledge this is the first paper that investigates European banks press releases on corporate governance. Findings are relevant for banks’ management and their disclosure policy. Nonetheless, further research is needed to investigate differences and similarities between an area of governance disclosure and another.

scholarly journals Food and beverage stocks responding to COVID-19

2021 ◽  
Vol 18 (3) ◽  
pp. 359-371
Author(s):  
Lai Cao Mai Phuong
Keyword(s):  
Decision Making ◽  
Event Study ◽  
Stock Prices ◽  
Policy Implications ◽  
Market Theory ◽  
The Third ◽  
First Case ◽  
Event Study Method ◽  
Food And Beverage ◽  
Efficient Market Theory

This paper investigated how food and beverage (F&B) stocks react to COVID-19. The event study method was applied to four events including the first and second events, were the first COVID-19 positive patients detected in the largest and second-largest economic center of Vietnam. The third and fourth events are related to strong measures to prevent the spread of COVID-19: the nationwide lockdown at the beginning of the second quarter of 2020, and the lockdown of Danang at the beginning of the third quarter of 2020. The results show that the reaction of F&B stock prices to events supports the semi-strong form of efficient market theory. The strong and lasting negative reaction of F&B stocks to the first event can be explained by surprise (first case in Vietnam) and Hochiminh city’s economic engine driving role in the development of Vietnam’s economy. The study finds that heuristic decision-making from nationwide lockdowns (suppression of supply chains during lockdowns) can explain the sub-sector of farming-fishing-ranching products reacted more strongly to the lockdown event in Danang. Based on the research results, this paper provides some policy implications for managers and notes for securities investors.

scholarly journals PENGARUH PELANTIKAN KABINET KERJA HASIL RESHUFFLE JILID II TERHADAP HARGA SAHAM LQ-45

2017 ◽  
Vol 13 (1) ◽  
pp. 1
Author(s):  
Aulia Hatmanti ◽  
Bambang Sudibyo
Keyword(s):  
Event Study ◽  
Stock Prices ◽  
Abnormal Return ◽  
T Test ◽  
Good News ◽  
Political Event ◽  
Paired Sample ◽  
The Difference ◽  
Adjusted Model ◽  
The Impact

Abstrak: Pengaruh Pelantikan Kabinet Kerja Hasil Reshuffle Jilid II terhadap Harga Saham LQ-45. Tujuan dari penelitian ini adalah untuk melihat pengaruh peristiwa politik-pelantikan Kabinet Kerja hasil reshuffle jilid II-terhadap harga saham yang terdaftar dalam kelompok saham LQ-45. Penelitian ini menggunakan metode studi peristiwa untuk melihat adanya reaksi pasar yang dapat dilihat dari adanya abnormal return pada saham. Abnormal return pada penelitian ini dihitung menggunakan mean-adjusted model. Berdasarkan hasil uji beda t-test satu sisi, terdapat abnormal return positif yang signifikan pada event day (t) dan t+3. Uji beda rata-rata menggunakan paired sample t-test yang dilakukan untuk melihat perbedaan rata-rata abnormal return pada 5 hari sebelum dan 5 hari sesudah peristiwa tidak menunjukkan adanya hasil yang signifikan. Berdasarkan hasil tersebut, dapat disimpulkan bahwa peristiwa politik berupa pelantikan Kabinet Kerja hasil reshuffle jilid II merupakan good news bagi investor. Kata kunci: studi peristiwa, abnormal return, LQ-45, peristiwa politik Abstract: The Impact of the Inauguration of 2nd Reshuffled Cabinet on LQ-45 Stock Prices. The purpose of this research is to observe the impact of the political event the inauguration of 2nd reshuffled cabinet-to LQ-45 group’s stock prices. This study used event study method to identify the market reaction that can be seen from the abnormal return on the stock prices. The abnormal return is calculated using mean-adjusted model. T-test indicates that there is a significant positive abnormal return on event day (t) and t+3. Besides, paired sample t-test was conducted to see the difference in the average abnormal return in 5 days before and five days after the events didn’t show any significant results. Based on these results, it can be concluded that the inauguration of 2nd reshuffled cabinet is good news for investors. Keywords: event study, abnormal return, LQ-45, political events

scholarly journals Stock Spams: Another Kind Of Stock Prices Manipulation

2012 ◽  
Vol 29 (1) ◽  
pp. 79 ◽  
Author(s):  
Taoufik Bouraoui ◽  
Mohamed Mehanaoui ◽  
Bouchaib Bahli
Keyword(s):  
Event Study ◽  
Stock Prices ◽  
Market Reaction ◽  
Font Size ◽  
Event Window ◽  
Parametric Test ◽  
Study Methodology ◽  
Penny Stocks ◽  
The Impact ◽  
Event Study Methodology

<span style="font-family: Times New Roman; font-size: small;"> </span><p style="margin: 0in 0.5in 0pt; text-align: justify;" class="MsoNormal"><span style="font-family: Times New Roman;"><span lang="EN-GB" style="color: black; font-size: 10pt; mso-ansi-language: EN-GB;">This research investigates the market reaction to an information-based manipulation called stock spams. The impact is focused on the liquidity variable which is measured by </span><span lang="EN-GB" style="font-size: 10pt; mso-ansi-language: EN-GB;">Amivest ratio. Using the event study methodology on a sample of penny stocks for the period February 2006 through October 2008, our findings suggest <span style="color: black;">positive and significant abnormal liquidities for stocks targeted by manipulators during the event window. Robustness checks were performed using a non-parametric test. These results support the thesis that this kind of manipulation is a very flourishing business that manipulators exploit by simply purchasing stocks at low prices and selling them at higher prices. </span></span></span></p><span style="font-family: Times New Roman; font-size: small;"> </span>

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