Deals without delusions.

Pursuing a merger or acquisition is inherently difficult. Things get even harder when executives are blind to their own faulty assumptions, say Lovallo--a professor at the University of Western Australia Business School and a senior adviser to McKinsey--and three of his McKinsey colleagues. The authors identify biases that can surface at each step of the M&A process and provide practical tips for rising above them--an approach they call targeted debiasing.