The Halo Effect 01

Recentemente tive acesso a uma daqueles artigos super interessantes que agente lê mais de uma vez. Pensei em traduzi-lo mas, por não ser um especialista em traduções da língua inglesa, fiquei com receio de deturpar as idéias contidas no texto.

Pela primeira vez nesse blog, publico um artigo em inglês. Apesar de que para se ler um texto em outra língua exige-se um pouco mais de esforço para grande maioria, vale a pena. Este artigo mostra, clara e brilhantemente que as empresas não conseguirão ótimas e duradouras performances seguindo regras e receitas passo-a-passo dos gurus do management ou apenas copiando estratégias de outras empresas que deram certo.

Boa leitura!

The halo effect, and other managerial delusions

Companies cannot achieve superior and lasting business performance simply by following a specific set of steps.

Phil Rosenzweig – Mckinsey Quarterly

The quest of every high-quality corporate executive is to find the keys to superior performance. Achieving market leadership is hard enough, but staying at the top—given intense competition, rapidly changing technology, and shifting global forces—is even more difficult. At the same time, executives are under enormous pressure to deliver profitable growth and high returns for their shareholders. No wonder they constantly search for ways to achieve competitive advantage.

But many executives, despite their good intentions, look in the wrong places for the insights that will deliver an edge. Too often they reach for books and articles that promise a reliable path to high performance. Over the past decade, some of the most popular business books have claimed to reveal the blueprint for lasting success, the way to go from good to great, or how to craft a fail-safe strategy or to make the competition irrelevant.

At first glance, many of the pronouncements in such works look entirely credible. They are based on extensive data and appear to be the result of rigorous analysis. Millions of managers read them, eager to apply these keys to success to their own companies. Unfortunately, many of the studies are deeply flawed and based on questionable data that can lead to erroneous conclusions. Worse, they give rise to the especially grievous notion that business success follows predictably from implementing a few key steps. In promoting this idea, authors obscure a more basic truth—namely, that in the business world success is the result of decisions made under conditions of uncertainty and shaped in part by factors outside our control. In the real world, given the flux of competitive dynamics, even seemingly good choices do not always lead to favorable outcomes.

Rather than succumb to the hyperbole and false promises found in so much management writing, business strategists would do far better to improve their powers of critical thinking. Wise executives should be able to think clearly about the quality of research claims and to detect some of the egregious errors that pervade the business world. Indeed, the capacity for critical thinking is an important asset for any business strategist-one that allows the executive to cut through the clutter and to discard the delusions, embracing instead a more realistic understanding of business success and failure. As a first step, it’s important to identify some of the misperceptions and delusions commonly found in the business world. Then, using these insights, we might replace flawed thinking with a more acute method of approaching strategic decisions.

Beware the halo effect
Many studies of company performance are undermined by a problem known as the halo effect. First identified by US psychologist Edward Thorndike in 1920, it describes the tendency to make specific inferences on the basis of a general impression.

How does the halo effect manifest itself in the business world? Imagine a company that is doing well, with rising sales, high profits, and a sharply increasing stock price. The tendency is to infer that the company has a sound strategy, a visionary leader, motivated employees, an excellent customer orientation, a vibrant culture, and so on. But when that same company suffers a decline—if sales fall and profits shrink—many people are quick to conclude that the company’s strategy went wrong, its people became complacent, it neglected its customers, its culture became stodgy, and more. In fact, these things may not have changed much, if at all. Rather, company performance, good or bad, creates an overall impression—a halo—that shapes how we perceive its strategy, leaders, employees, culture, and other elements.

As an example, when Cisco Systems was growing rapidly, in the late 1990s, it was widely praised by journalists and researchers for its brilliant strategy, masterful management of acquisitions, and superb customer focus. When the tech bubble burst, many of the same observers were quick to make the opposite attributions: Cisco, the journalists and researchers claimed, now had a flawed strategy, haphazard acquisition management, and poor customer relations. On closer examination, Cisco really had not changed much—a decline in its performance led people to see the company differently. Indeed, Cisco staged a remarkable turnaround and today is still one of the leading tech companies. The same thing happened at ABB, the Swiss-Swedish engineering giant. In the 1990s, when its performance was strong, ABB was lauded for its elegant matrix design, risk-taking culture, and charismatic chief executive, Percy Barnevik. Later, when the company’s performance fell, ABB was roundly criticized for having a dysfunctional organization, a chaotic culture, and an arrogant CEO. But again, the company had not really changed much.

The fact is that many everyday concepts in business—including leadership, corporate culture, core competencies, and customer orientation—are ambiguous and difficult to define. We often infer perceptions of them from something else, which appears to be more concrete and tangible: namely, financial performance. As a result, many of the things that we commonly believe are contributions to company performance are in fact attributions. In other words, outcomes can be mistaken for inputs.

Wise managers know to be wary of the halo effect. They look for independent evidence rather than merely accepting the idea that a successful company has a visionary leader and a superb customer orientation or that a struggling company must have a poor strategy and weak execution. They ask themselves, “If I didn’t know how the company was performing, what would I think about its culture, execution, or customer orientation?” They know that as long as their judgments are merely attributions reflecting a company’s performance, their logic will be circular.

The halo effect is especially damaging because it often compromises the quality of data used in research. Indeed, many studies of business performance—as well as some articles that have appeared in journals such as Harvard Business Review and The McKinsey Quarterly and in academic business journals—rely on data contaminated by the halo effect. These studies praise themselves for the vast amount of data they have accrued but overlook the fact that if the data aren’t valid, it really doesn’t matter how much was gathered or how sophisticated the analysis appears to be.

This reliance on questionable data, in turn, gives rise to a number of further errors in logic. Two delusions—of absolute performance and of lasting success—have particularly serious repercussions for business strategists.

The delusion of absolute performance
One of the most seductive claims in business best sellers is that a company can achieve success if it follows a specific set of steps. Some recent books are explicit on this point, claiming that a company hewing to a certain formula is virtually sure to become a great performer. On closer inspection these studies rely on sources of data (including retrospective interviews, articles from the business press, and business school case studies) that are routinely undermined by the halo effect. Whereas a given set of factors may appear to have led predictably to success, the reverse is more likely—it would be more accurate to say that successful companies tended to be described in the same way. The direction of causality is wrong.

Following a given formula can’t ensure high performance, and for a simple reason: in a competitive market economy, performance is fundamentally relative, not absolute. Success and failure depend not only on a company’s actions but also on those of its rivals. A company can improve its operations in many ways—better quality, lower cost, faster throughput time, superior asset management, and more—but if rivals improve at a faster rate, its performance may suffer.

Consider General Motors. In 2005 GM’s debt was reduced to junk bond status—hardly a vote of confidence from financial markets. Yet compared with the automobiles GM produced in the 1980s, its cars today boast better quality, additional features, superior comfort, and improved safety. Owing to myriad factors, including the increased prominence of Japanese and South Korean automakers, GM’s share of the US market keeps slipping, from 35 percent in 1990 to 29 percent in 1999 and 25 percent in 2005. Its declining performance must be understood in relative terms. Paradoxically, the rigors of competition from Asian automakers are precisely what have stimulated GM to improve. Is GM a better automaker than it was a generation ago? Yes, if we look at absolute measures. But that’s little comfort to its employees or shareholders.

The delusion of absolute performance is very important because it suggests that a company can achieve high performance by following a simple formula, regardless of the actions of competitors. If left unchecked, executives may avoid decisions that, although risky, could be essential for success. Once we see that performance is relative, however, it becomes obvious that a company can never achieve success simply by following certain steps, no matter how serious its intentions. High performance comes from doing things better than rivals can, which means that managers have to take risks. This uncomfortable truth recognizes that some elements of business performance are beyond our control, yet it is an essential concept that clear-thinking executives must grasp.

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