Search results for "Event study"
showing 10 items of 26 documents
High prevalence of arrhythmic and myocardial complications in patients with cardiac glycogenosis due to PRKAG2 mutations
2016
International audience; AIMS: Mutations in PRKAG2, the gene encoding for the γ2 subunit of 5'-AMP-activated protein kinase (AMPK), are responsible for an autosomal dominant glycogenosis with a cardiac presentation, associating hypertrophic cardiomyopathy (HCM), ventricular pre-excitation (VPE), and progressive heart block. The aim of this study was to perform a retrospective time-to-event study of the clinical manifestations associated with PRKAG2 mutations.METHODS AND RESULTS: A cohort of 34 patients from 9 families was recruited between 2001 and 2010. DNA were sequenced on all exons and flanking sequences of the PRKAG2 gene using Sanger sequencing. Overall, four families carried the recur…
Revolving doors: are they valued in the Spanish stock market?
2016
Purpose The purpose of this paper is to examine the effect of political connections in the value of companies listed on the Spanish stock market. Design/methodology/approach The authors study two issues on this topic: the impact on the company value of the appointment as director of an ex-politician through an event study; and the long run stock market performance of companies with political connections. The authors employ a sample of listed firms in the Spanish stock market for which the authors collected data about their political connections. The authors perform the study during a wide period (1996-2011), comprising four legislatures. Findings The results show that from the market persp…
Shareholder Wealth Creation in Response to Announcements of Acquisitions of Unlisted Firms: Evidence from Spain
2011
We investigate shareholder value creation of Spanish listed firms in response to announcements of acquisitions of unlisted companies and compare this experience to the purchase of listed firms over the period 1991–2006. Similar to foreign markets, acquirers of listed targets earn insignificant average abnormal returns, whereas acquirers of unlisted targets gain significant positive average abnormal returns. When we relate these results to company and transaction characteristics our findings diverge from those reported in the literature for other foreign markets, as our evidence suggests that the listing status effect is mainly associated with the fact that unlisted firms tend to be smaller …
The cost of equity and exchange listing evidence from the French stock market
1997
We reconsider the behaviour of prices around the period close to the listing on the Marché à Règlement Mensuel (RM). First, an event study based on a sample of 60 firms has been set up to test the existence of the exchange listing effect on the French market. Then we discuss and test the financial reasons which can justify abnormal returns around the announcement day and the day of the listing. We explore four reasons to explain the impact of the stock exchange listings: one is the informative content of the operation which induces an upward revision of the future earnings. Three other hypotheses rely on a decrease in the discount rate originated by less risky cash flows, an increase in tra…
Financial Sector Reform After the Subprime Crisis: Has Anything Happened?
2015
We analyze the reactions of stock returns and the spreads of credit default swaps (CDS) of banks from Europe and the USA to four major regulatory reforms in the aftermath of the subprime crisis, employing an event study analysis. Contrary to public perception, we find that financial markets indeed reacted to the structural reforms enacted at the national level. The reforms succeeded in reducing bail-out expectations relative to the post-bail-out period, especially for systemic banks. The strongest effects were found for the Dodd–Frank Act and in particular for the Volcker rule. Bank profitability was affected in all countries, showing up in lower equity returns.
Sovereign Credit Ratings and Financial Markets Linkages: Application to European Data
2012
We use EU sovereign bond yield and CDS spreads daily data to carry out an event study analysis on the reaction of government yield spreads before and after announcements from rating agencies (Standard & Poor’s, Moody’s, Fitch). Our results show significant responses of government bond yield spreads to changes in rating notations and outlook, particularly in the case of negative announcements. Announcements are not anticipated at 1–2 months horizon but there is bi-directional causality between ratings and spreads within 1–2 weeks; spillover effects especially among EMU countries and from lower rated countries to higher rated countries; and persistence effects for recently downgraded countrie…
Reactions of the Spanish capital market to qualified audit reports
2004
Since mandatory auditing of financial statements was first established in Spain, very few studies have been conducted to test the information content of audit reports in the Spanish capital market. The aim of this study is, then, to test empirically whether there is a relationship between audit qualifications and stock prices in the context of the Spanish market. We have used the event study methodology for this purpose. Our findings show that qualified audit reports do not have information value for investors.
Value Creation When Acquiring Public vs Private Firms. Spanish Evidence
2013
We investigate shareholder value creation of Spanish listed firms in response to announcements of acquisitions of unlisted companies and compare this experience to the purchase of listed firms over the period 1991–2011. Similar to foreign markets, acquirers of listed targets earn insignificant average abnormal returns. However, acquirers of listed targets that perform a first bid show significant negative abnormal returns. Acquirers of unlisted targets gain significant positive average abnormal returns. When we relate these results to company and transaction characteristics our evidence suggests that the listing status effect is mainly associated with the fact that unlisted firms tend to be…
The Effects of National Allocation Plans on Carbon Markets
2007
The release of information in carbon markets at its early state is characterized as being numerous and not scheduled. This paper analyzes the impact of National Allocation Plans announcements on carbon prices and their volatility during the period October 2004 through May 2007, during which time more than 70 announcements were released. In order to adapt event studies methodology to the particularities of our data, a sole series with lots of announcements, we propose the Truncated Mean Model that does not take into account big surprises in the estimation period. The results indicate that news has an influence on carbon prices on both the announcement day and previous days. Additionally, we …
Financial Sector Reform After the Crisis: Has Anything Happened?
2013
We analyze the reactions of stock returns and CDS spreads of banks from Europe and the United States to four major regulatory reforms in the aftermath of the subprime crisis, employing an event study analysis. In contrast to the public perception that nothing has happened, we find that financial markets indeed reacted to the structural reforms enacted at the national level. All reforms succeeded in reducing bail-out expectations, especially for systemic banks. However, banks' profitability was also affected, showing up in lower equity returns. The strongest effects were found for the Dodd-Frank Act (especially the Volcker rule), whereas market reactions to the German restructuring law were …