Modelling multiperiod patterns in stock-market reactions to events,with an application to serial acquisitions

In event studies, the now standard window of a few days may miss relevant price movements if the market’s reaction to the news announcement tends to be slow or if the initial reaction tends to be partially or wholly undone afterwards. We propose a parsimonious hybrid of splines and Almon lags to detect and classify various patterns of post-event reactions spread over many periods. The scheme can interact with one or more event characteristics (like deal size), and the resulting non-linear model can be estimated via maximum likelihood (ML).In our application, we study the returns pattern that follows takeover announcements by two leading serial acquirers, AB Inbev SA and Heineken. Our method confirms the presence of a drop-and-recovery pattern as reported in Doan and Sercu (2021), but the amplitude of the pattern shows no link with deal size. This last finding is not in line with the view that the pattern reflects a rise in uncertainty that is slowly resolved (Malatesta and Thomson, 1985).     

An analysis of advisor choice, fees, and effort in mergers and acquisitions

This paper investigates the choice of financial advisors in mergers and acquisitions, the fees that the targets and the acquiring firms pay to these advisors, and the speed with which advisors complete transactions. Our sample includes 5337 merger deals announced during the period January 1995 to June 2000, that involved publicly traded targets and acquirers. We find that top-tier advisors are more likely to complete deals and to complete them in less time than lower tier advisors. However, the synergistic gains realized by the acquirers declined when top advisors were used. We also find that contingent fees play a significant role in expediting the deal completion. Surprisingly, we find that deals that are initiated by the advisors do not seem to take less time to complete. Our results suggest that the payment of larger advisory fees do not play an important role in determining the likelihood of completing the deal, but they are associated with greater acquisition gains realized by the acquirer. In addition, these synergistic gains are also associated with the switching by acquirers of their financial advisors within the same tier.     

Investment bank reputation and shareholder wealth effects in mergers and acquisitions

This paper investigates the relationship between the reputation of investment banks employed in mergers and acquisitions transactions and the resulting wealth effects. Two hypotheses are tested: the superior deal hypothesis, stating that high reputation advisors suggest deals with higher overall transaction gains; and the bargaining advantage hypothesis, stating that the larger share of transaction benefits is attributed to the party employing a highly reputed advisor. Evidence from 285 European M&A-transactions announced between 1997 and 2002 does not support any of these hypotheses. On average, wealth effects are not significantly different for transactions advised by different advisor tiers.     

Merger and acquisitions in South African banking: A network DEA model

Banking in South Africa is known for its small number of companies that operate as an oligopoly. This paper presents a strategic fit assessment of mergers and acquisitions (M&A) in South African banks. A network DEA (Data Envelopment Analysis) approach is adopted to compute the impact of contextual variables on several types of efficiency scores of the resulting virtual merged banks: global (merger), technical (learning), harmony (scope), and scale (size) efficiencies. The impact of contextual variables related to the origin of the bank and its type is tested by means of a set of several robust regressions to handle dependent variables bounded in 0 and 1: Tobit, Simplex, and Beta. The results reveal that bank type and origin impact virtual efficiency levels. However, the findings also show that harmony and scale effects are negligible due to the oligopolistic structure of banking in South Africa.     

Appraisal rights and corporate disclosure during mergers and acquisitions

Target shareholders have the right to ask for a higher merger price if good news emerges after a merger agreement. This “appraisal right” varies with state law and was substantially strengthened in Delaware in 2007. I examine how target managers respond to changes in this right. If target managers represent target shareholders, the managers would be more likely to release good news, but I find they are more likely to withhold good news when appraisal rights are higher. This suggests agency problems and collusion on the part of target managers, and thus my paper adds to the larger literature that considers agency problems on the part of managers.     

Earnings management,audit adjustments,and the financing of corporate acquisitions: Evidence from China

Acquirers are motivated to overstate earnings prior to stock-financed acquisitions. We hypothesize that audits help to detect and correct such overstatements. We test this using a difference-in-differences design, which compares audit adjustments to earnings for stock-financed and cash-financed acquirers before versus after the acquisitions. Consistent with our hypothesis, we find larger downward adjustments in the audits immediately before stock-financed acquisitions. Further analysis of regulatory sanctions suggests the downward adjustments are in fact warranted, rather than auditors being overly conservative. Moreover, modifications in audit reports suggest that downward adjustments do not correct all of the reporting irregularities in audited financial statements.     

Spillover of corporate governance standards in cross-border mergers and acquisitions

In cross-border acquisitions, the differences between the bidder and target corporate governance (measured by newly constructed indices capturing shareholder, minority shareholder, and creditor protection) have an important impact on the takeover returns. Our country-level corporate governance indices capture the changes in the quality of the national corporate governance regulations over the past 15 years. When the bidder is from a country with a strong shareholder orientation (relative to the target), part of the total synergy value of the takeover may result from the improvement in the governance of the target assets. In full takeovers, the corporate governance regulation of the bidder is imposed on the target (the positive spillover by law hypothesis). In partial takeovers, the improvement in the target corporate governance may occur on voluntary basis (the spillover by control hypothesis). Our empirical analysis corroborates both spillover effects. In contrast, when the bidder is from a country with poorer shareholder protection, the negative spillover by law hypothesis states that the anticipated takeover gains will be lower as the poorer corporate governance regime of the bidder will be imposed on the target. The alternative bootstrapping hypothesis argues that poor-governance bidders voluntarily bootstrap to the better-governance regime of the target. We do find support for the bootstrapping effect.     

Ownership concentration and bank risk: international study on acquisitions

This paper explores the effects of different types of bank ownership concentration on changes in bank risk during acquisition years. Using multi-country data from 2000 to 2006, during which market failures caused by various crises and government interventions are less influential to acquisition decisions, we collect 505 banking acquisition deals from 23 countries to examine which type of ownership concentration (such as financial intermediary, capital investor, non-financial, and state ownership) brings larger changes to an acquirer’s risk from pre-acquisition year to post-acquisition year (including non-performing loans, capital adequacy ratio, loan loss reserve, and credit rating). The empirical analyses show that acquirer banks with a concentration of shares owned by financial intermediaries and non-financial firms experience larger risk changes during acquisition years. In contrast, the risk changes of acquirer banks with a concentration of capital investors and state ownership are lower. Robustness checks from the random effect estimation, instrumental variables model, reverse causality, and different subsamples of (non-)U.S. or different levels of regulation enforcement confirm these results.     

Mergers,acquisitions, and bank efficiency: Cross-country evidence from emerging markets

In emerging countries, bank mergers and acquisitions (M&A) are frequently motivated by the objective of promoting stability in the banking industry. However, the evidence that M&A can lead to better performing banks is tenuous at best. In this article, we investigate if this tenuous relationship could be due to the treatment of target and acquiring banks as the same type in empirical analysis, which overlooks the possibility that M&A may affect these banks differently. Using panel data on six emerging countries, our results confirm that the effect of M&A is generally weak except when our regressions are implemented separately for target and acquiring banks. For the latter, we find that target banks tend to be more efficient after an M&A but no efficiency improvements are found for acquiring banks. These results suggest that in emerging countries, bank M&A can lead to efficiency improvements for the combined entity, although target banks are mainly the ones to benefit from it. They also highlight the importance of distinguishing between target and acquiring banks so as to obtain sharper estimates of how M&A might affect bank performance.     

A test of bear market mergerstat control premiums

This paper examines all 340 of the 2001 “bear market” acquisition announcements of U.S. target firms reported by Mergerstat/Shannon Pratt’s Control Premium Study^TM. This paper compares the “Control Premium” reported by Mergerstat/Shannon Pratt’s Control Premium Study^TM to a comparable “Cumulative Abnormal Return”(CAR) calculated using event study methodology. While the average total “Control Premium” reported by Mergerstat differed by only −3.45% from the event study CAR, significant differences presented themselves when the event period was broken down between the day −63 to −1 “runup” period and the day 0 to end “markup” period.      

Aggressive CEOs and bank mergers and acquisitions

The U.S. banking industry has seen waves of mergers since the 1980s. Despite a significant body of research on the determinants of these waves, there are few studies of how CEOs influence banks’ mergers and acquisitions (M&As). This paper studies the effect of CEO aggressiveness on bank M&As. We construct a new measure of bank CEO aggressiveness based on CEOs’ ancestral countries of origin and data on inter-country wars. We find that aggressive CEOs are more likely to acquire other banks. Moreover, the impact of CEO aggressiveness on bank M&A decisions is more pronounced when the CEOs are from larger and more profitable banks, when CEOs have a longer tenure, and when CEOs’ ancestral country of origin has a more masculine culture. Moreover, we show that aggressive CEOs are more likely to make acquisitions when CEOs possess more cultural maintenance, which captures the extent to which CEOs retain their original cultural values and beliefs. Finally, we document positive short-term stock market reactions to bank M&As initiated by aggressive CEOs.     

Political corruption shielding and corporate acquisitions

Corruption includes rent‐seeking behavior by public officials (e.g., lavish in‐kind benefits and monetary kickbacks for contracts/permits/regulatory leniency, improper political contributions/support, etc.) that can negatively affect firm valuations, performances, and strategic choices. Shielding strategies are used to diminish rent‐seeking attractiveness of firms. Acquisitions provide a better channel than cash or leverage for assessing the wealth effects of shielding strategies. We find that the mean 3‐day announcement returns for acquirers for a large sample of U.S. domestic acquisitions between 1990 and 2014 is significantly lower for firms headquartered in relatively higher corruption states. Our results survive an array of robustness tests.     

Liquidity and firm characteristics: Evidence from mergers and acquisitions

We explore factors affecting liquidity by examining the relation between liquidity changes and changes in firm characteristics around mergers and acquisitions. We find that spreads decline as the number of analysts, number of shareholders, number of market makers, firm size, and volume increase or as volatility decreases. Increased volume and firm size, and decreased volatility, are associated with increased depth. We find no evidence diversifying and non-diversifying mergers affect liquidity differently. We note that mergers and acquisitions are associated with reductions, on average, in spreads but that the reductions are fully explained by the accompanying changes in firm characteristics.     

Indexing mergers and acquisitions

We measure the efficiency of mergers and acquisitions by putting forward an index (the ‘M&A Index’) based on stochastic frontier analysis. The M&A Index is calculated for each takeover deal and is standardized between 0 and 1. An acquisition with a higher index encompasses higher efficiency. We find that takeover bids with higher M&A Indices are more likely to succeed. Moreover, the M&A Index shows a strong and positive relation with the acquirers’ post-acquisition stock performance in the short run and operating performance in the long run. After constructing three portfolios under a buy-and-hold strategy, we find that efficient portfolios with the highest indices earn higher equity returns and monthly alphas than inefficient portfolios with the lowest indices. Overall, our findings indicate that the M&A Index is positively associated with merger outcomes for acquirers.     

Categorization of mergers and acquisitions using transaction network features

Mergers and acquisitions (M&A) have occurred among tens of thousands of companies. Categorization of M&A is important to both corporate strategy and academic research. Previous research largely uses case studies and econometric data analysis to classify the motivations and types of M&A. Here, we propose understanding M&A using large-scale data to generate more applicable and generalized results. We use transaction relationships from transaction networks to better understand M&A. Based on detailed pre-analysis, including matching M&A and transaction data from Japan and clustering of transaction networks, we select several M&A observation perspectives. We use two features of transaction networks to categorize M&A cases: betweenness centrality and shortest path length. Betweenness centrality provides a view of the overall business situation from a macro perspective, and shortest path length helps to understand neighboring business environments from a micro perspective. We find several meaningful areas of concentration based on their betweenness centrality values and shortest path lengths. Finally, we re-examine M&A cases in each area, summarizing the trends identified using this categorization method. This study contributes to the M&A literature because it advances quantitative categorization of M&A cases.     

Mergers and acquisitions research in finance and accounting: Past,present, and future

This study presents an analysis of publication patterns and major themes in research on mergers and acquisitions in finance and accounting. We find that takeovers as mechanisms of governance, drivers of mergers, mechanisms of mergers, bank mergers, cross-border mergers, shareholder wealth effects of mergers and related events, and the role of financial experts and ownership structure form major themes of research in the finance area, while in accounting area major themes are corporate governance and accounting outcomes, predicting takeovers and their outcomes, valuation, financial reporting and takeover decisions, and financial reporting and performance.     

The probability of informed trading and mergers and acquisitions

This paper investigates the role of the probability of informed trading (PIN) in mergers and acquisitions (M&A). We show that acquirers with higher PINs use more cash to finance their deals due to their higher cost of equity, and acquirers use more equity financing when acquiring targets with higher PINs to share the information risk with the target shareholders. We also find that acquirers and targets with higher PINs both experience higher announcement returns when cash financing is used, indicating that PINs are priced in the M&A market.     

Bank mergers and acquisitions in emerging markets: evidence from Asia and Latin America

Following a global wave of consolidation in the banking industry, this study analyses 132 mergers and acquisitions (M&As) involving banks in emerging markets in Asia and Latin America between 1998 and 2009. An event study measures the change in shareholder value for acquirers and targets; and a multivariate regression identifies the drivers of the change in shareholder value for acquirers. On average M&As create shareholder value for target firms, while acquirer firms do not lose shareholder value. Geographical diversification creates shareholder value for acquirers. Acquirer shareholders benefit from the acquisition of underperforming targets; from transactions settled by cash rather than exchange of equity; and from government-instigated M&A transactions.     

对我国企业跨境并购重组税收政策的一些看法

目前,我国大规模的企业并购重组尤其是跨境并购重组不断发生。本文分析了当前我国有关企业跨境并购重组税收政策方面存在的问题,并借鉴国外做法,立足我国实际情况,提出进一步完善税收政策和加强税收征管的建议。     

Long-term performance of mergers and acquisitions in ASEAN countries

The study looks at mergers and acquisitions (M&As) in ASEAN countries and examines the post-M&A performance using data from 2001 to 2012. The industry-adjusted operating performance tends to decline in the 3 years following an M&A. Yet, the results suggest that M&As completed during the financial crisis are more profitable than those implemented before and/or after the crisis. We argue that this is mainly due to the synergies created between the firms’ resources during the crisis which augur well for firms’ economic performance. We find that, during the crisis, certain characteristics of the firms like the relative size of the target, cross-border nature of deals, acquirer's cash reserves and friendly nature of deals are important determinants of long-term post-M&A operating performance. However, for M&As during the crisis, there appears to be no relationship between performance and firms’ characteristics linked to M&A activity such as payment method, industry relatedness and percentage of target's share acquired.