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Halo Effect Cisco, the Silicon Valley firm, was once a darling of the new economy. Business journalists gushed about its success in every discipline: its wonderful customer service, perfect strategy, skilful acquisitions, unique corporate culture and charismatic CEO. In March 2000, it was the most valuable company in the world. When Cisco’s stock plummeted 80% the following year, the journalists changed their tune. Suddenly the company’s competitive advantages were reframed as destructive shortcomings: poor customer service, a woolly strategy, clumsy acquisitions, a lame corporate culture and an insipid CEO. All this – and yet neither the strategy nor the CEO had changed. What had changed, in the wake of the dot-com crash, was demand for Cisco’s product – and that was through no fault of the firm. The halo effect occurs when a single aspect dazzles us and affects how we see the full picture. In the case of Cisco, its halo shone particularly bright. Journalists were astounded by its stock prices and assumed the entire business was just as brilliant – without making closer investigation. The halo effect always works the same way: we take a simple-to-obtain or remarkable fact or detail, such as a company’s financial situation, and extrapolate conclusions from there that are harder to nail down, such as the merit of its management or the feasibility of its strategy. We often ascribe success and superiority where little is due, such as when we favour products from a manufacturer simply because of its good reputation. Another example of the halo effect: we believe that CEOs who are successful in one industry will thrive in any sector – and furthermore that they are heroes in their private lives, too.
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Rolf Dobelli (The Art of Thinking Clearly: The Secrets of Perfect Decision-Making)