The document discusses the concept of managerial hubris, which refers to excessive pride or self-confidence held by senior managers that can lead to cognitive biases and poor decision making. Managerial hubris can result in empire building within an organization as managers seek to expand their power and influence. It is also related to mergers and acquisitions if acquiring company managers overestimate their ability to manage target companies. This can lead to winners' curse, where the winning bid exceeds the true value of the target. The hubris hypothesis suggests managerial hubris in acquisitions can result in bids over the intrinsic value and ultimately lower shareholder returns.