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This study investigates the extent to which structural equivalence between acquiring and target firms is associated with post-merger and acquisition (M&A) performance—a relationship that is proposed to be moderated by industry-level vertical relatedness between acquiring and target firms.

Applying social network analysis and regression, this study analyzes a buyer–supplier relationship network dataset of 279 M&A deals completed between 2010 and 2017 to test the hypotheses. Structural equivalence is measured as the proportion of common customers and suppliers between an acquiring firm and a target firm.

Supporting a view about the importance of supply chains in explaining M&As outcomes, the results suggest that the structural equivalence in the supplier network is positively associated with post-M&A firm performance. The results also show that the effect of the structural equivalence in the customer network is moderated by vertical relatedness between two merging firms (i.e. structural equivalence contributes to post-M&A performance when vertical industry relatedness is high).

This study contributes to the M&A and supply network literature by investigating the performance implications of structural equivalence in supplier and customer networks, demonstrating the importance of taking a supply chain view when explaining M&As outcomes. Specifically, the authors suggest considering structural equivalence as a new type of relatedness between merging firms (i.e. relatedness in network resources in explaining post-M&A performance). It also indicates how industry-level vertical resource relatedness, which is about relatedness in internal resources between the two firms, could interact with firm-level network resource relatedness, which is about relatedness in external supply chain resources between the two firms, in affecting post-M&A performance.

This study examines the relation between negative goodwill (NGW) and operating performance after mergers and acquisitions (M&A).

This is a comparative analysis of post-M&A operating performance for 228 transactions involving listed Japanese firms that generated negative or positive goodwill.

First, post-M&A operating performance is lower when the transaction generates NGW. Second, the negative relation between NGW and post-M&A performance is stronger when managers have incentives for earnings management and when target firms perform poorly before M&A. Third, changes in the accounting treatment of NGW alter the relative importance of earnings management incentives and target firms' poor pre-M&A performance.

Prior studies attribute the negative relation between NGW and post-M&A performance solely to acquiring firms' managers' earnings management incentives. The current study finds that the target firm's poor pre-M&A performance is also associated with the relation between NGW and post-M&A performance.

The purpose of this paper is to investigate the impact of mergers and acquisitions (M & A) on corporate performance. It addresses the major question related to the long-term performance of the acquiring firm.

The paper uses the long-term pre- and post-merger financial data to investigate the long-term performance. It compares performance of the acquiring firms before and after M & A. The present work conducts a comprehensive ratio analysis of 14 major ratios related to profitability, efficiency, leverage and liquidity. To ascertain the sources of the better long-term post-M & A returns, the present work decomposes the measure of operating performance into its constituents in terms of Du Pont analysis.

Taking a sample of 305 M & As during the period of January 2003 to December 2008, it has been observed that there is significant improvement in the profitability of the acquiring companies involved in M & A. The results pertaining to profitability, efficiency (in terms of utilization of fixed assets), expense and liquidity ratios show that there is an improvement in performance of the acquiring firms in the post-M & A period. The analysis in terms of Du Pont shows improvement in the long-term operating profit margin of the acquiring firms. This means higher profit is generated per unit net sales by the acquiring firms after the M & A. The higher profits (profit before interest and taxes and non-operating income) are generated primarily due to the better operating margins. The improved operating cash flows are on account of the improvement in the post-M & A operating margins of the acquirers, not due to the efficient utilization of the assets turnover to generate higher sales.

The paper contributes to the existing literature by comparing operating performance and profitability of acquirers before and after M & A using a comprehensive set of 14 ratios for a substantially large sample.

This study aims to identify and assess the use of mergers and acquisitions (M&A) performance metrics for small- and medium-sized German pharmaceutical and biotechnology companies.

In depth qualitative interviews with senior key informant executives involved with recent M&A were conducted. Unlike previous studies, the role of the interviews was to identify and uncover the use of a broad set of success metrics to add to a fuller understanding of post-M&A behaviour, leading to a more accurate evaluation of post-M&A performance.

Results from interviews suggest that important M&A success metrics include having a successful organisation, integrated cultures, a high employee retention rate, gaining new technology knowledge, overall economic enhancement, increases in patent-protected products, increases in clinical success rates (perished rate assessment) and increases in the share price. In general, expert interviewees stated that they would use a combination of the success metrics and monetary tools to assess post-M&A success.

This study identifies and uncovers a series of different M&A performance success metrics being in prominent use. The use of a combination of metrics is highlighted as being a relatively unique research finding.

The purpose of this paper is to examine the role of diversity management on postmergers and acquisitions (M&A) performance. Building on prior literature, it investigates whether a firm ability to harmonize people with different backgrounds and to deal with uncertainty and dynamics in the diverse work environment will affect post-M&A performance either directly or through its interactions with acquirer-target characteristics.

This paper used panel regression analysis on a sample of 218 M&As conducted by listed large US firms across industries.

Results show that the diversity management of an acquiring firm positively influences post-M&A performance. This paper also finds support for diversity management having a more significant moderating role where merged firms have a bigger size difference and higher industry relatedness.

The primary contribution of this study is in testing and finding evidence to support the claim that diversity management is a useful factor in predicting post-M&A performance. The success of post-M&A integration should be considered alongside the extent of firm capabilities to manage internal diversity.

This study provides new evidence on the nature of value creation in M&A activity based on a sample of giant pharmaceutical M&As and independent non‐M&A rival firms. Relying on multiple indicators of performance, their post‐M&A performance was compared with their pre‐M&A performance as well as with the performance of other major pharmaceutical firms that have not been involved in M&A activity. Based on three measures of operating M&A performance, it has been noted in general that no value creation was realized in the sample M&As in terms of research productivity, return on investment, and profit margin. The sample M&As had lower research productivity than that of both pre‐M&A and independent non‐M&Arival firms. In a similar vein, with regard to return on investment, M&As were not better than their pre‐M&A firms, but performed relatively better than their non‐M&A rivals. As far as the profit margin is concerned, the sample M&As, however, appeared to have better performance than pre‐M&Afirms and almost on par with the non‐M&A rivals.

The purpose of this paper is to investigate the combined effect of Mergers and Acquisitions (M & A) partners’ technological relatedness and the acquirer’s effective utilization of the target’s knowledge on explorative and exploitative invention performance post-M & A.

Based on the knowledge perspective of an M & A, this study measures how much of the target’s knowledge acquired in an M & A has been effectively transformed into new knowledge. A negative binomial regression on a cross-sectional data set of 152 bio-pharmaceutical firms (59 European firms and 93 North American firms) completing at least one M & A in the period between 2001 and 2005 is conducted. The effect of knowledge utilization is assessed by comparing performance six years before the M & A and six years after.

The effective assimilation and utilization of acquired knowledge positively affects both acquirers’ explorative and exploitative performance post-M & As. The combined effect with technological relatedness, measured as similarity and complementarity, further enhances the acquirer’s technological performance. However, while the utilization of similar knowledge significantly affects only exploitative invention performance, the utilization of complementary knowledge influences both, although explorative more than exploitative performance.

The acquirer’s ability to effectively use the target’s knowledge is crucial in order to support the transformation of the inventive potential, such as is embodied in the interaction between an internal and an external base of knowledge, into new explorative and exploitative performance.

Over the last decade, the sustainability concept has progressively enticed both practitioners and researchers around the world. Despite the research interest in the role of sustainability in mergers and acquisitions (M&As), a number of critical questions remained unanswered. The aim of this chapter is to review and synthesize the existing research on sustainability and M&As in the fields of management, international business, finance, accounting, and economics and identify avenues for further research. The literature review has been organized according to the process perspective of M&As, that is, the pre-M&A and post-M&A phases. The review of the literature revealed that most of the existing literature used proxies of sustainability such as environment, social, and governance (ESG) rating or corporate social responsibility (CSR) and attempted to examine the relationship between ESG/CSR performance with stock market reaction and returns. While a small but growing number of studies examined the role of sustainability in M&As, there are scopes for further research. This chapter puts forward a research agenda that calls for a more granular examination of the role of sustainability in pre-M&A phases such as the target selection process, that is, due diligence and negotiation process in domestic and cross-border M&As. Moreover, future studies should investigate the role of sustainability during the post-M&A phase, for example, integration of sustainability practices during the post-M&A stage.

As cross-cultural mergers and acquisitions (M&A) have learning effects on organisations, assessing their impacts on corporate performance is crucial. This study aims to explore the impact of inter-firm cultural differences on long-term post-M&A stock market performance.

The authors select domestic M&A transactions of Chinese listed companies during 2010–2021 as the sample. Then, the authors use the partial least squares structural equation model (PLS-SEM) to construct the latent variable of cultural differences in four dimensions to explore long-term stock market performance.

Cultural differences first positively and then negatively impact post-M&A performance. Three transmissions mechanisms are identified: investor sentiment, takeover premiums and information disclosure quality. Further analysis reveals that acquirer stock performance improves with higher analyst coverage and non-local shareholders but worsens if there are business affiliations between the acquirer and target firms.

This study can help optimise information disclosure systems in M&A transactions for regulatory authorities and aid investors’ understanding of post-M&A performance changes. Furthermore, it can improve acquirers’ understanding of the risks and opportunities in cross-cultural M&A, thereby facilitating the adaptation of management practices to the im-pacts of cultural differences.

By integrating the theories of resource dependence and transaction costs, this study examines the reversal effect of cultural differences between merging companies on post-M&A performance. The authors use a PLS-SEM to empirically analyse the main effects and reveal three transmission mechanisms.

This paper aims to show that information asymmetry plays a vital role in the post-M&A performance-time until deal completion nexus. The findings are that the due diligence hypothesis and the overdue hypothesis proposed and tested in Thompson and Kim (2020) are influenced by the information asymmetry of the target during the negotiation process. Thus, mergers that involve more opaque targets that take a shorter time to close perform better, whereas those that take too long to close experience poor post-M&A performance. Conversely, there is no such effect when the mergers involve targets that are transparent and not plagued with large information asymmetry problems. These results hold for the short-term supporting the evidence that information asymmetry problems are severe before the merger is consummated and become attenuated post-merger.