Why Strategy Should Shape How Firms Integrate Acquisitions
There is no single best way to integrate an acquisition. Our research shows that acquirers create value from acquisitions in different ways, depending on their strategic orientation. Firms with a strong entrepreneurial orientation benefit from flexible, loosely integrated approaches that preserve autonomy and rely on a shared vision to achieve coordination, while market-oriented firms achieve better results through tighter integration, standardization, and control. The key point is not that one approach is better than the other. Rather, acquisition success depends on whether the integration approach reinforces how the acquiring firm creates value.
Not all Acquirers Should Integrate the Same Way
Managers often search for “best practices” when integrating acquisitions. Yet real-world examples show that firms adopt very different approaches to reach similar outcomes. Our study suggests that these differences are not random. They are shaped by the acquiring firm’s strategic orientation, that is, the dominant way the firm understands its business, allocates resources, and coordinates activities. Acquisitions by firms emphasizing corporate entrepreneurship, or a more innovative culture, tend to benefit from more flexible and less tight integration, while acquisitions by market-oriented firms often perform better with tighter integration. Aligning integration choices with strategic orientation can improve acquisition outcomes and help managers design integration processes that support rather than undermine their firm’s strategy.
Why do firms integrate so differently?
When firms engage in acquisitions, they face a fundamental question: how tightly should the acquired organization be integrated? At its core, the goal of post-acquisition integration is coordination, aligning behaviours, decisions, and activities across organizations toward common goals. However, coordination can be achieved in different ways.
Consider two well-known industrial firms: Siemens and ABB. Both have long histories of successful growth through acquisitions, but they often take very different approaches to integration and coordination following an acquisition. Siemens has frequently pursued tighter integration to realize synergies and coordination benefits, while ABB has, at times, allowed acquired units greater autonomy to preserve flexibility and responsiveness to customer demand.
Why would two successful firms adopt such different integration strategies to achieve coordination?
A common explanation is that managers can freely decide, and that integration strategies depend mainly on deal-specific factors. But this explanation is incomplete. It suggests that integration decisions are driven only by the characteristics of the deal or the target firm. Our research offers a complementary explanation: integration strategies are also embedded in the acquirer’s own organizational context. They are most effective when these strategies fit the acquiring firm’s strategic orientation.
What we studied
Our study, published in the Journal of Management Studies, examines how the strategic orientation of acquiring firms shapes their post-acquisition integration decisions, and how this alignment affects acquisition performance. We tested these relationships using survey data from 311 small- and medium-sized acquirers across three regions, the Nordic countries, German-speaking Europe, and China. The firms in our sample had completed majority acquisitions in manufacturing industries within the three years before the survey. We collected responses from senior managers, including CEOs, CFOs, heads of M&A, and corporate development executives.
Post-acquisition integration is about achieving coordination across organizations, and we focussed on three central integration decisions. First, functional integration, the extent to which the target’s activities, such as strategy formulation, marketing, R&D, and operations are integrated into the acquirer’s structures. Second, decision-making autonomy, the extent to which target managers retain decision authority after the acquisition. Third, human integration, the extent to which the acquirer and target build shared culture, HR practices and work towards common goals. This allowed us to examine not only whether firms integrated acquisitions more or less tightly, but also how different types of integration worked together to achieve coordination and enhance acquisition performance.
What we found
We found that firms with different strategic orientations pursue different paths to coordination after an acquisition. Market-oriented acquirers are more likely to rely on functional integration. These firms tend to emphasize customer responsiveness, competitor awareness, and interfunctional coordination. For them, integrating functions such as marketing, R&D, operations, and strategy formulation can help create a more coordinated organization that responds consistently to market needs.
The role of decision-making autonomy within the integration process is more nuanced. We did not find that market-oriented acquirers automatically reduce target managers’ decision-making autonomy. Instead, we found that human integration alters this relationship. When market-oriented acquirers engage strongly in human integration, they tend to use it to reinforce tighter alignment and reduce target managers’ autonomy. In other words, shared culture and common HR practices help market-oriented acquirers to consolidate control and ensure that the acquired unit follows the acquirer’s market-oriented logic.
Entrepreneurial-oriented acquirers followed a different path. These firms emphasize innovation, pro-activeness, and are willing to engage in risks. As such, they are more prone to allow local opportunity seeking and appreciate local initiatives. We found that they were more likely to preserve decision-making autonomy in the acquired unit. For these acquirers, autonomy is not a lack of coordination, it is part of how they create value.
Human integration also played a different role for entrepreneurial-oriented acquirers. Rather than using human integration to impose tighter control, these firms used it to build shared goals and a common vision. This allowed target managers to retain autonomy while still acting in ways that were aligned with the acquirer’s broader strategic direction.
Put simply, market-oriented and entrepreneurial-oriented acquirers both need coordination after an acquisition, but they achieve it differently. Market-oriented acquirers are more likely to achieve coordination through functional integration and removing decision-making autonomy for target managers through human integration. Entrepreneurial-oriented acquirers are more likely to grant decision-making autonomy and achieve coordination, thus working toward common goals, through human integration.
These findings help explain why universal integration “best practices” can be misleading. A high level of integration may support one acquirer’s strategy but undermine another’s. Likewise, preserving autonomy may be valuable for one acquirer but problematic for another. What matters is the fit between the acquirer’s strategic orientation and the integration approach.
Why these findings matter
These findings have important implications beyond academia. For managers, the key message is that integration decisions should not be treated as purely operational choices. Instead, they should be aligned with the firm’s strategic orientation. Managers should ask not only how to integrate a focal acquisition, but also whether a particular integration approach reinforces or conflicts with how their firm creates value. Further, keeping this in mind might also provide important insights for earlier stages of the acquisition process, such as target screening.
The key takeaway is: Successful acquisitions are not just about choosing the right target or paying the best price. Success also depends on choosing the right way to integrate a target, and that choice should reflect how the acquiring firm competes. There is no universal answer to the question of how to integrate. The better question is what type of integration fits the way this acquirer creates value.
Who should read the full paper
The full paper will be of potential interest to both scholars and managers. For scholars studying mergers and acquisitions, strategic management and entrepreneurship, it contributes to understanding how firm-level strategic orientations influence post-acquisition integration decisions and performance outcomes. Additionally, managers involved in corporate strategy, mergers and acquisitions, and post-merger integration may also find the study useful, as it highlights the importance of aligning integration decisions with broader strategic priorities.
In particular, the paper will be useful for managers who want to move beyond generic integration playbooks and design acquisition processes that fit their firm’s own strategic logic.
