Merger vs acquisition

Sometimes, to achieve the greatest level of success, we must take advantage of how another firm can help us create a stronger competitive advantage.

Respond to the following questions:

What reasons could account for an organization's decision to implement a merger or acquisition strategy?
How does an organization determine which of the two strategies to implement?
Acquisition strategies can be complex. What are the primary problems faced during an acquisition that can affect a firm's ability to successfully implement the strategy?

Please site at least 1 reference