Why do mergers and acquisitions happen?

The best reasons for M&A (merger and acquisition) are when two organizations possess complementary resources that combine to deliver customer satisfaction more efficiently and/or effectively.
This can range from economies of scale, to synergies of talent, and (strategically) can be a viable competitive tactic during the “industry-shakeout” stage (early maturity) of an industry life cycle.
Motives can include the will to utilize capital, improve management, combine knowledge, but also to develop barriers to entry for market challengers and followers.

A business is really complex and usually has many stakeholders, so when two companies do due diligence and get those stakeholders to agree, it makes sense to merge or be taken over, it's really interesting thanks to the mergers and acquisitions in singapore from https://imaa-institute.org/m-and-a-singapore/ . This action indicates broader trends in the market, whether small or large.