Cultural Differences in International Merger and Acquisitions

Why Cultural Differences Matter in Mergers and Acquisitions

“One of my early cross cultural training projects was in 2007, after a Kuwaiti firm had acquired a British car brand in the UK. Cultural differences at board level were causing friction, and my job was to help both sides find middle ground. Ever since, I’ve been fascinated by cultural differences in mergers and acquisitions.”

N. Payne, Head of Learning, Commisceo Global

How does culture make or break an international M&A? At Commisceo Global, we have a lot of experience helping organizations navigate cultural differences in mergers and acquisitions – both before deals are signed and long after integration begins.

From board-level alignment to day-to-day collaboration, we’ve seen firsthand how cultural differences can either strengthen partnerships or quietly derail them.

In today’s global economy, cross-border mergers and acquisitions are a core strategy for growth. Organizations expand into new markets, acquire new capabilities, and bring together teams from very different cultural backgrounds.

However, M&A success is not just about financials, strategy, or operations – it is also about how people work together.

Many M&As succeed, but many fail. One of the most common (and underestimated) reasons is culture.

• Analysts such as KPMG highlight the importance of strong pre-merger planning, including identifying differences, aligning expectations, and preparing for integration challenges.
• Others, such as Able, emphasize the role of leadership – ensuring clear direction, strong communication, and the ability to bring people together under a shared vision.

Our experience of working with leaders managing M&A integration shows that both are critical – but without understanding cultural differences, even the best plans and leadership can fall short.

This article explores real-world case studies to show how cultural differences impact mergers and acquisitions, and what organizations can do to manage cultural integration more effectively.

Cultural Differences in Mergers and Acquisitions: 7 Real Case Studies

This article demonstrates how cultural differences in mergers and acquisitions can significantly impact outcomes. An indifferent approach to culture can create risks, while effective cultural integration can strengthen partnerships and drive success.

Below, we explore seven real-world M&A case studies that highlight common cross cultural challenges in mergers and acquisitions, as well as examples of successful cultural integration.

Each case study provides background on the companies involved, alongside practical insights into the cultural differences, communication issues, and leadership dynamics that influenced the outcome.

The Daimler-Chrysler merger is one of the most cited examples of how cultural differences in mergers and acquisitions can lead to failure. Significant gaps in leadership style, hierarchy, and decision-making created communication breakdowns and a lack of trust during integration. This case highlights the risks of poor cultural integration in M&A. [Image of Daimler Stuttgart-Untertuerkheim Zentrale. Click to see source.]

1. Daimler-Chrysler: How Cultural Differences Caused M&A Failure

The Daimler-Benz merger with Chrysler in 1998 is probably the most famous of all international mergers that ended in failure. Cultural differences and organisational culture are both acknowledged to have played their part.

It was this failed partnership that first rang the alarm bells that cultural factors just cannot be ignored on a global level, especially not within mergers and acquisitions.

Key Cultural Differences Behind the Daimler-Chrysler Merger Failure

Analysts agree that the cultural gap in corporate cultures was one of the main reasons for the Daimler-Chrysler failure. Daimler was a German company that could be described as “conservative, efficient and safe”, while Chrysler was known as “daring, diverse and creating” (Appelbaum, Roberts and Shapiro, 2009:44).

If one looks closely, one will find numerous manifestations of these differences in the corporate cultures.

Firstly, the attitude to hierarchy was quite different. Daimler was a very hierarchical company with a clear chain of command and respect for authority.  Chrysler, on the other hand, favoured a more team-oriented and egalitarian approach.

The other cultural difference lay in what the companies valued in terms of their clients. Chrysler valued reliability and achieving the highest levels of quality, while Chrysler was placing its bets on catchy designs and offering their cars for competitive prices.

These two factors resulted in conflicting orders and goals in different departments. The American management style was very different from that of the German managers, who had different values, which drove and directed their work. Different departments were heading in opposing directions.

Apart from differences in corporate culture, there was also an issue of trust. Employees on both sides felt reluctant to work with each other. Mainly, this was caused by the realization that the agreed term “merger of the equals” was pretty far from reality. During the initial stages of organisational integration, huge numbers of Chrysler’s key executives either resigned or were replaced by their German counterparts.

Moreover, Daimler was much more imposing and tried to dictate the terms on which the new company should work (Appelbaum, Roberts and Shapiro, 2009:44). Such a situation didn’t inspire trust in Chrysler’s employees and raised some serious communication challenges.

So to summarise the cultural factors in play here:

1. differences in corporate cultures and values
2. lack of coordination and severe lack of trust among the employees

All three resulted in communication failures, which in turn caused a sharp reduction in productivity.

Financial Impact of Cultural Differences in the Daimler-Chrysler Merger

The ‘proof is in the pudding,’ as we like to say, and the pudding did not taste good. As you can see, share prices plummeted.

Daimler-Chrysler’s share prices between 1998 and 2002

• How much money was paid by Daimler for Chrysler in 1998? $38 billion   
• How much money was paid by Cerberus Capital for Chrysler in 2007? $7.4 billion

The sheer difference in the amounts of money paid for Chrysler by Daimler and later by Cerberus Capital makes one really wonder how such a promising merger could fail so dramatically.

Usually, it is extremely difficult to pinpoint exactly what role culture played in the success or failure. However, in the case of Daimler-Chrysler, it would be a safe assumption to say that the culture factor was among the crucial ones that determined the downfall of a new company.

The Daimler-Mitsubishi alliance demonstrates how ignoring national culture can undermine M&A integration efforts. Differences in communication, trust-building, and long-term versus short-term thinking created friction between German and Japanese teams. This case reflects common cross cultural challenges in mergers and acquisitions. [Image of Mitsubishi Motors Headquarters. Click image to see source.]

2. Daimler and Mitsubishi: Cross Cultural Challenges in M&A Integration

One of the lesser-known international cooperation blunders is that of the DaimlerChrysler-Mitsubishi alliance in 2000.

Right after acquiring Chrysler, the newly merged DaimlerChrysler decided to gain a foothold in Asia as well. They saw Mitsubishi Motors as the golden ticket.

The outcome, however, wasn’t that successful.

Cross Cultural Challenges in the Daimler-Mitsubishi Alliance

Unlike in the DaimlerChrysler example previously, the main difference here lay not in the corporate or organisational culture but more in the national culture, i.e., Japanese business culture vs. German business culture. In this case, Daimler failed to acknowledge any local practices and principles of Japanese work culture.

In Japanese culture, trust and attention to others’ feelings are essential. This means that Japanese businesspeople value personal relationships more than dry facts. What is important is how you value your client and how you treat them. This differs greatly from the strictly fact-based and pragmatic approach of the German counterpart.

Not paying any attention to the concept of “localization”, Daimler appointed German managers who immediately enacted the German approach to management and started giving orders as if they were in Germany.

As a result, Japanese subordinates felt extremely reluctant to take orders from them (Froese and Goeritz, 2007: 98), which in turn had a negative impact on overall efficiency.

Moreover, most Germans were seen as guests, which exacerbated the situation since guests usually don’t have authority in Japan, and on top of that, it’s hard to be “rude” to a guest.

Cross-department communication was very weak as well. Apart from the R&D department, communication mechanisms weren’t installed properly, and a chain of command was not clearly defined (Froese and Goeritz, 2007: 101).

An example to illustrate the above-mentioned is in order. A special task group was established in order to find a way towards effective and smooth integration. The group was working hard for quite some time. They even produced a report with recommendations on how to achieve the given goal.

However, nobody ordered or took any steps to implement those changes (Froese and Goeritz, 2007: 102). All of these question the very purpose of establishing new departments if all their work isn’t used.

The last cultural difference that will be mentioned here is the conflict between cultures that value long-term orientation over short-term orientation and vice versa.

One of the founders of the intercultural theoretical framework, Professor Hofstede, used this difference as one of the key dimensions of culture. Generally speaking, countries in the West tend to be more short-term goal-oriented, while the countries of the East strive for more long-term goal orientation.

In practice, it means that the financial difficulties which Mitsubishi Motors experienced were perceived quite differently by the two parties involved in the alliance.

DaimlerChrysler, after some time, started feeling reluctant to make any further investments in Mitsubishi. They didn’t see any short-term profits, which eventually led to “pulling the plug” on their Japanese partner. Mitsubishi, on the other hand, wasn’t really concerned with the losses.

They were more long-term oriented. They perceived the difficulties as an obstacle to overcome, but not as a reason to dismantle the alliance. That is why, when DaimlerChrysler announced that it refused to make any further investments, the little shreds of trust disappeared.

The joint venture didn’t work as intended because of the lack of consideration given to cultural factors. The inability to establish proper communication, build trust, and recognise the goals of one’s counterpart played a significant role in the outcome of the cooperation.

Moreover, just as in the DaimlerChrysler merger, a German company was imposing its own terms on its partners. Once again, this “bargaining in” and “do-it-our-way” attitude proved incapable of delivering results.

Financial Impact of Cultural Misalignment in M&A Integration

The following graph shows the financial consequences of this alliance:

Mitsubishi’s profit and losses between 2000 and 2004.

The combination of poor financial performance and the eventual ending of the deal stands as proof of another of Daimler’s failures to integrate with an international partner. And once more, cultural factors contributed to bringing this result about.

TATA’s acquisition of Jaguar Land Rover is a strong example of successful cultural integration in mergers and acquisitions. By respecting existing leadership, maintaining local management, and building trust, TATA enabled collaboration across cultures. This case shows how cultural awareness can support long-term M&A success. [Image of Tata car works (previously Land Rover-Jaguar). Click to see the source.]

3. TATA and Jaguar Land Rover: Cultural Integration Success in M&A

In 2008, TATA finalised the deal and acquired Jaguar Land Rover (JLR). However, the outcome was quite different from the previous case studies, which ended in failure. This one is a success story.

One can attribute the difference in the outcomes to the difference in approaches to the merger, acquisition, and integration process. TATA employed directly opposite methods to Daimler. The essence of this method lies in respecting the existing culture rather than imposing a foreign culture.

How Cultural Integration Drove Success in the TATA-JLR Acquisition

At the start of the process, the Managing Director openly stated that “change of ownership has little to do with the changing of culture”. This had several consequences on TATA’s management style.

Firstly, TATA, in contrast with Daimler, decided to leave the existing management structure intact and leave the national British managers. There wasn’t any attempt to impose the Indian management style on JLR. All the key personnel retained their positions.

Secondly, TATA didn’t just leave the current managers on their own. TATA managed to motivate them by constantly challenging them and working with them. In other words, help was offered only when it was needed, and existing practices remained in place, but at the same time, managers couldn’t afford to be idle because they had goals to reach and plans to implement.

Thirdly, unlike in the DaimlerChrysler and Mitsubishi alliance, TATA managed to inspire trust in JLR. First of all, the fact that most of JLR’s personnel were left in their positions showed that TATA trusted JLR and believed that it was capable of solving its problems. Moreover, more than once in interviews, the Managing Director stated that “it is TATA’s responsibility” to take care of JLR and that “TATA won’t shy away from investments if it is required”. Such clear statements of loyalty contributed positively to the cooperation between the companies.

Finally, TATA kept an open mind and never hesitated to listen to feedback from subordinates. TATA’s top-level officials often make trips to their factories and dealerships outside India and collect feedback from local employees. These opinions are being used in the developing company’s strategy.

Business Impact of Cultural Awareness in Post Merger Integration

The following graph illustrates the impact such an approach has brought about:

JLR’s turnover between 2008-2009 and 2001-2012

Such results clearly show the stark difference in the outcomes of cases like that of Daimler and those like the TATA-JLR case. As previously stated, there is no method to establish the extent of culture’s influence on success or failure, in this case study, where the other culture was respected, trust was inspired, and effective communication took place, which certainly provides food for thought.

The Nomura-Lehman acquisition highlights how cultural clashes in mergers and acquisitions can disrupt integration. Differences in risk appetite, leadership style, and workplace expectations created tension and reduced employee engagement. This case demonstrates the cultural risks in M&A when alignment is lacking. [Image of Lehman Brothers building in New York. Click image to see source.]

4. Nomura and Lehman Brothers: Cultural Clashes in Mergers and Acquisitions

After the collapse of Lehman Brothers, there were a number of companies eager to acquire parts of it. One of them was Nomura, who wanted Lehman Brothers’ Asian branches.

The project had a lot of potential for both sides. Key players from Lehman Brothers could retain jobs and work in one of the biggest Asian financial companies. Nomura, on the other hand, would have another shot at fulfilling their dream of going global. However, this was not meant to be.

Cultural Clashes and Leadership Challenges in the Nomura-Lehman Acquisition

One can argue that there were a number of reasons for this failure that took place on two different levels: macro-level and micro-level.

The first set of differences (macrolevel) lies in the differences of corporate cultures and corporate values. Lehmanites were accustomed to a very aggressive, risk-taking, and quick decision-making way of conducting business, including stress on team play.

Nomura, on the other hand, is really hierarchical, conservative, and preferred moderate constant incomes rather than momentous, enormous ones (Soon Young Choi, 2011: 26).

As for values, one example is in order. Attitudes to clients were quite different between Lehman and Nomura. Lehman Brothers were prioritising short-term incomes over long-term relations (another example of long-term thinking vs. short-term thinking). Nomura, on the contrary, preferred to work with old and reliable clients rather than chasing a risky but potentially beneficial deal.

Another macro issue was that of trust. For whatever reason, Nomura provided Lehmanites with “shadows”, who were constantly making notes on their performance. Even the top-level executives were constantly followed. Apart from the understandable irritation, this raised suspicions that Nomura didn’t really trust their newly acquired human assets.

Microlevel problems were abundant as well. The most surprising and vivid example was the treatment of women by Lehman Brothers.

Soon after the acquisition of Lehman Brothers, Nomura launched a series of training sessions to smooth the integration process.

A potentially good idea took a rather peculiar form. Women and men were separated. Women were instructed how to wear their hair, what dress code they should adhere to, and even how to serve tea! Moreover, there were a couple of instances when female employees weren’t allowed to take part in a meeting because of the “strict door policy.”

Financial Consequences of Cultural Differences in Mergers and Acquisitions

Such stark cultural differences and a clear imposition of Nomura’s culture on ex-Lehman Brothers’ employees had horrendous results. In the first three months, the losses were estimated to be about $591 million.

In the very beginning, Nomura stated that there were actually two goals of this acquisition: establishing footholds outside Japan and employing and holding the key big figures from Lehman Brothers. Let’s now try to compare the goals and the results.

Estimated losses in 2008 and the first quarter of 2009 were about ¥8,700 billion (Soon Young Choi, 2011: 33). After that, Nomura started generating profits. However, this amount was of no significance when compared to Nomura’s competitors. Below are the investment banking profits of Nomura and its competitors (first quarter of 2009).

• Nomura: $207 million
• Goldman Sachs: $3,46 billion
• Morgan Stanley: $1,78 billion
• Citigroup: $4,43 billion

As for retaining employees, the long series of defections and retirements ended with the defection of Jasjit “Jesse” Bhattal in January 2012. Throughout the partnership, other “heavy-weights” decided to leave including Alexis de Rosnay (2008), Brian O’Connor (May 2009), Jane Wang (2010), Thomas Siegmund (March 2010), Colin Banfield (March 2010), Sigurbjorn “Siggi” Thorkelsson (March 2010), Adrian Mee (April 2010), Glenn H. Schiffman (March 2011), Rachid Bouzouba (March 2011), Philip Lynch (July 2012) and Tarun Jotwani (January 2012).

A combination of financial difficulties, which cast a dark shadow on Nomura’s ambitions, and the mass defection of Lehmanites provides grounds to conclude that this partnership hasn’t yielded the anticipated dividends. The enormous gap in corporate culture and values, and the feeling of “suffocation” which eventually caused defections, played its role in the downfall of the once prospective venture.

The BNP Paribas-Fortis acquisition illustrates how cultural awareness can improve post merger integration. A strong focus on diversity, inclusion, and cross cultural training helped align teams across countries. This case shows how managing cultural differences in mergers and acquisitions can drive positive outcomes. [Click the image to see source.]

5. BNP Paribas and Fortis: Cultural Awareness in Post Merger Integration

BNP Paribas has extensive experience in working with other companies, with people from different countries, and in expanding their operations internationally.

One such expansion was the acquisition of Fortis. Far from failing, the merger was an amazing cross-cultural merger success that can today be used as a benchmark for integration best practices.

The Role of Cultural Awareness in Successful M&A Integration

The first reason for the success of this merger is that BNP Paribas places enormous emphasis on cross-cultural awareness; it is even included in the policy of the company. BNP Paribas was itself a merger of two banks: Banque Nationale de Paris and Paribas. The experience of that merger had a tremendous impact on the corporate values and culture of the newly emerged financial company.

Cultural diversity and respect for cultural differences became keynotes of BNP Paribas’s way of doing business. As the company grew and expanded to other countries, the commitment towards equal opportunities and accommodation of employees from different cultural backgrounds grew and grew stronger.

Today, in the “Corporate Culture” section of the BNP Paribas website, you can find the “Diversity section”, where BNP Paribas not just states its position on the subject, but enlists a number of concrete steps in upholding this commitment. These steps include Professional Training to Fight against Stereotypes, Favouring Professional Equality between Women and Men, and a Policy for People with Disabilities to Promote Employment and Integration, etc.

Such an accommodative approach mainly pre-determined the attitude towards the acquisition. In the statement of BNP Paribas on the acquisition of Fortis, it was stated: “This partnership culture, founded on openness to third parties and the pooling of best practices, is a veritable ‘trademark’ of BNP…”. This was a general idea, while all the integration processes were performed accordingly.

It is worth mentioning here that in spite of the fact that all the employees are constantly encouraged to keep an open mind and to be sensitive to other cultures, BNP Paribas conducted a number of cultural awareness training and cultural competency training sesssions to help people work effectively with people from Belgium and Luxembourg.

Financial Results of Effective Cultural Integration in M&A

The results of the acquisition are impressive. Swiftly, BNP Paribas acquired secured footholds in Belgium and in Luxembourg. The new venture is constantly generating profits. Only in the first half of 2012, the net income before discontinued operations was EUR 635 million.

Another indirect factor, which can be interpreted as success, was that both in 2011 and 2012, BNP Paribas Fortis became Bank of the Year. Such high results show that BNP Paribas is probably one of the most experienced in terms of managing cross cultural teams and of intercultural communication.

If, for us, it is hard to link culture to success, the people from BNP Paribas are convinced of it: the combination of cultural awareness, respect for others, and ranking the best practices from everywhere “does much to explain its success”.

The merger between British Steel and Hoogovens reveals how cultural mismatch can lead to operational and communication challenges. Differences in management style, decision-making, and leadership created confusion and reduced efficiency. This case highlights the impact of cultural misalignment in international mergers. [Image of blast furnace located at the Port Talbot Corus Steel Plant, South Wales, UK. Click image to see source.]

6. British Steel and Hoogovens: Cultural Mismatch in M&A Integration

Now, let us turn to an example from heavy industry in terms of international mergers and acquisitions. In 1999, British Steel and Dutch Royal Hoogovens decided to merge. The result was the Corus Group.

The prospects for the venture were promising. Corus Group was estimated to become the “world’s fifth-biggest steelmaker at the time”. However, the reality was slightly different.

Cultural Mismatch and Communication Breakdown in M&A Integration

The first cultural mismatch is quite similar to a couple of the other case studies, which have already been covered – differences in management practices.

The Dutch model of management was based on consensus and the interests of both parties (namely, the employer and the employee). However, the British management style shifted the balance to the shareholders.

At first, it caused frustration among the workers, which eventually led to strikes. Moreover, these strikes escalated into “wide-scale labour unrest”.

The second issue was the strategy behind the integration of the two companies. Corus Group favoured a decentralised approach to the problem. In spite of the fact that the general idea was to leave the autonomy of the companies intact, the result was quite dismal. The flaw lay in the lack of communication and lack of understanding between the companies. The disruption in the organisation, unclear chain of command, and lack of cooperation between the two branches of the Corus Group curbed its own efficiency.

The third issue is partly caused by the second one. The vacuum of leadership, which was caused by an unclear chain of command, just couldn’t remain empty for long. However, the result was not the emergence of a strong leader, but a power struggle. This resulted in constant differences in instructions and had a negative impact on communication.

All three factors cumulatively affected the morale of the workforce, which was constantly deteriorating.

Financial Impact of Cultural Misalignment in International Mergers

The result of this cultural mismatch is clearly described in the market valuations of the Corus Group.

Corus Group’s market value in 1999 – US$6 billion
Corus Group’s market value in 2003 – US$230 million

The lesson of the Corus Group case study can be summarised as:

• absence of clear leadership
• severe lack of communication between departments
• low morale of the labour force
• poor productivity
• poor organization

The Lukoil-ConocoPhillips partnership demonstrates how cultural intelligence in mergers and acquisitions can support collaboration. By proactively addressing cultural differences and adapting working practices, both sides improved communication and performance. This case highlights the value of cultural intelligence in M&A integration. [Image of Conoco-Phillips Building. Anchorage, Alaska. Click to see source.]

7. Lukoil and ConocoPhillips: Cultural Intelligence in Mergers and Acquisitions

A successful example of cultural competence from the heavy industries is that of the cooperation in joint venture form between the Russian company Lukoil and its American partners ConocoPhillips.

Cultural differences, rather than being reactive afterthoughts, were addressed very early, allowing for smoother integration and clearer communication between the parties.

How Cultural Intelligence Improved Cross Cultural Collaboration in M&A

Their story is quite interesting. ConocoPhillips, after this cooperation came about, clearly recognised and respected the cultural differences that existed. Being proactive about culture, the company even came up with its own guide to working in Russia. A chapter on cultural differences takes a significant part of the report (8/31 pages).

They pointed out several gaps between the cultures which had to be taken into account while working in Russia, such as fatalism, employment status, decision making, teamwork, individualism, and generation gap (Legler, Osborn and Whitehorn 2008:22-28). This allowed their employees to feel awareness about their colleagues in Russia, broke down barriers, and got people thinking about bridging differences.

One of the starkest differences lay in individualism. ConocoPhillips noticed that while Americans place great value on individuality and are never afraid of showing it (Legler, Osborn and Whitehorn 2008:26), Russians have a totally different approach to individuality. Russians prefer blending into the crowd rather than separating themselves from it (Legler, Osborn and Whitehorn 2008:26).

The second difference worth mentioning here is the decision making progress. Russians prefer making decisions based on an enormous amount of data and only after thorough analysis (Legler, Osborn and Whitehorn 2008:24). American business culture, on the other hand, is more inclined to risk-taking and considered the thoroughness of their Russian counterparts redundant.

Recognising these differences, which are very subtle but extremely important, and being aware of these differences helped this venture to become profitable for both parties.

Financial Results of Cultural Intelligence in Mergers and Acquisitions

As we can see, the results were quite positive. During the period of the partnership, the net profits of companies soared. Success resulted because culture was taken into account and properly analysed.

Key Lessons on Cultural Differences in Mergers and Acquisitions

The aim of the article was to show that culture plays a role in determining the success or failure of an international partnership. It is hard to say to what extent this influence determines the outcomes; however, there is definitely a positive correlation between cultural awareness and success/failure.

Having looked through these case studies, one can conclude that there are several cultural factors that affect the outcomes of the joint ventures, mergers, acquisitions, or commercial alliances, including:

• awareness of partner’s corporate culture
• awareness of partner’s national culture
• communication differences across cultures
• leadership and management styles
• trust and relationships in business

All of these things can seem obvious, but the main problem is that we are so accustomed to our ways, means, thinking, ideas, and perceptions that we forget about “the other”.

In other words, culture will affect any international venture, whether is a merger, a business meeting, a presentation of a sales pitch. It is up to the players involved to determine whether culture can help you win or lose.