When does an acquisition work?

The strategic rationale for an acquisition that creates value typically conforms to at least one of the following five archetypes: improving the performance of the target company, removing excess capacity from an industry, creating market access for products, acquiring skills or technologies more quickly or at lower cost than they could be built in-house, and picking winners early and helping them develop their businesses. If an acquisition does not fit one or more of these archetypes, it's unlikely to create value. (Source McKQ)