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The Halo Effect: . . . and the Eight Other Business Delusions That Deceive Managers, by Phil Rosenzweig
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Review
"In "The Halo Effect," Phil Rosenzweig has done us all a great service by speaking the unspeakable. His iconoclastic analysis is a very welcome antidote to the kind of superficial, formulaic, and dumbed-down matter that seems to be the current stock in trade of many popular business books. It's the right book at the right time."-- John R. Kimberly, Henry Bower Professor of Entrepreneurial Studies, The Wharton School, University of Pennsylvania"I was taken by this book. It destroys myths concerning the attribution of success in the management literature using potent empirical arguments. It should stand as one of the most important management books of all time, and an antidote to those bestselling books by gurus presenting false patter and naive arguments." -- Nassim Nicholas Taleb, author of "Fooled by Randomness: The Hidden Role of Chance in Life and in the Markets""Rosenzweig doesn't only poke fun at the mass of bad writing and bad science in the management world. He explains why it is so bad -- and how you can learn from it, despite the efforts of the authors." -- John Kay, "Financial Times" columnist and author of "Everlasting Light Bulbs: How Economics Illuminates the World""In "The Halo Effect", Phil Rosenzweig has done us all a great service by speaking the unspeakable. His iconoclastic analysis is a very welcome antidote to the kind of superficial, formulaic, and dumbed-down matter that seems to be the current stock in trade of many popular business books. It's the right book at the right time." -- John R. Kimberly, Henry Bower Professor of Entrepreneurial Studies, The Wharton School, University of Pennsylvania"Business books all too rarely combine real-world savvy with scientific rigor. Rosenzweig's book is an outstanding exception -- it's a superb work and long overdue." -- Philip E. Tetlock, Lorraine Tyson Mitchell II Chair in Leadership and Communication, Haas School of Business, University of California, Berkeley
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About the Author
Phil Rosenzweig is a professor at IMD in Lausanne, Switzerland, where he works with leading companies on questions of strategy and organization. He earned his PhD from The Wharton School, University of Pennsylvania, and spent six years on the faculty of Harvard Business School. He is a native of Northern California. Comments to the author can be sent to Phil@The-Halo-Effect.com.Visit The-Halo-Effect.com to download a user’s guide to The Halo Effect for your company or classroom, or to join a discussion forum about delusions in the business world.
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Product details
Paperback: 288 pages
Publisher: Free Press; Reissue edition (June 17, 2014)
Language: English
ISBN-10: 1476784035
ISBN-13: 978-1476784038
Product Dimensions:
5.5 x 0.7 x 8.4 inches
Shipping Weight: 8.5 ounces (View shipping rates and policies)
Average Customer Review:
4.3 out of 5 stars
127 customer reviews
Amazon Best Sellers Rank:
#219,937 in Books (See Top 100 in Books)
Many business books and articles have been written about what Phil Rosenzweig calls “the mother of all business questions… What leads to high performance?†This book explains why much of this analysis is “riddled with errors.â€Using the examples of Cisco, ABB, and others, the author demonstrates the phenomenon. When times were good—strong revenue growth and a soaring stock price—these companies were praised for their exemplary strategy, culture, and CEO. When financial performance fell, the same strategy, culture, and CEO were ripped apart as severely flawed.Why does this happen? Because we love stories. “As long as Cisco was growing and profitable and setting records for its share price, managers and journalists and professors inferred that it had a wonderful ability to listen to its customers, a cohesive culture, and a brilliant strategy. And when the bubble burst, observers were quick to make the opposite attribution. It all made sense. It told a coherent story.â€â€œYet there’s a bit more to it. Our desire to tell stories, to provide a coherent direction to events, may also cause us to see trends that do not exist or infer causes incorrectly. We may ignore facts because they don’t fit into our story.â€How does this happen? Introducing the Halo Effect. “During World War I, an American psychologist named Edward Thorndike was conducting research into the ways that superiors rate their subordinates. In one study, he asked army officers to rate their soldiers on a variety of features: intelligence, physique, leadership, character, and so on. He was struck by the results. Some men were thought to be ‘superior soldiers’ and were rated highly at just about everything, while others were thought to be subpar across the board… Thorndike called it the Halo Effect.â€The Halo Effect is “a tendency to make inferences about specific traits on the basis of a general impression. It’s difficult for most people to independently measure separate features; there’s a common tendency to blend them together. The Halo Effect is a way for the mind to create and maintain a coherent and consistent picture to reduce cognitive dissonance… It’s also a heuristic, a sort of rule of thumb that people use to make guesses about things that are hard to assess directly.â€â€œFortune claims that the World’s Most Admired Company survey is ‘the definitive report card on corporate reputations.’ … For all the appearance of rigorous research—thousands of executives providing responses to nine separate questions, which are then combined for an overall ranking—there’s a serious Halo Effect. Respondents may be asked nine questions, but it’s unlikely that they have nine different opinions about the company. More likely is that one or two general impressions are expressed nine times. Moreover, the most important opinion is likely to be based on overall financial performance. Look at any company with healthy revenues and strong profits, and it’s likely that I’ll infer it has good management, high quality products, and more… Two different studies showed that a company’s financial performance explained between 42 and 53 percent of the variance of the overall rating.â€â€œSo many of the things that we—managers, journalists, professors, and consultants—commonly think contribute to company performance are often attributions based on performance.â€This leads us to the Delusion of Correlation and Causality. “If we want to test whether customer orientation leads to high performance, the last thing we should do is ask managers: ‘How customer oriented is this company?’ We’re likely to get an attribution based on performance. To have any validity at all, we need to rely on measures that are independent of performance.â€â€œBut suppose we look at a measure that is not tainted by Halos—say the rate of employee turnover—and we find a high correlation with performance. Now the challenge is to untangle the direction of causality… As long as we gather data at one point in time—cross-sectionally—we won’t know.â€â€œOne way to improve our ability to explain causality is to gather data at different points of time so that the impact of one variable on some subsequent outcome can be more clearly isolated. This approach, called, longitudinal design, is more time-consuming and expensive to carry out, but it stands a better chance of avoiding mistaken inferences from simple correlation.â€Next, there’s the Delusion of Absolute Performance. “Companies are often described as succeeding or failing on the merits of their actions alone, as if performance were absolute. But in a competitive market economy, the performance of one company is always affected by the performance of other companies.†It’s all relative.Kmart is a good illustration of this point. Kmart improved inventory turns from 3.45 in 1994 to 4.56 in 2002, a 32% improvement. Impressive, right? “Over the same eight years, Wal-Mart’s inventory turns went from 5.14 all the way to 8.08, up 63 percent. Wal-Mart had faster turns at the start of the eight-year period than Kmart had at the end. Kmart got better in absolute terms and yet fell further behind at the same time—and the gap between the two retailers was growing ever wider.â€â€œThe Delusion of Organizational Physics implies that the business world offers predictable results, that it conforms to precise laws. It fuels a belief that a given set of actions can work in all settings and ignores the need to adapt to different conditions: intensity of competition, rate of growth, size of competitors, market concentration, regulation, global dispersion of activities, and much more. Claiming that one approach can work everywhere, at all times, for all companies, has a simplistic appeal but doesn’t do justice to the complexities of business… Execution, like strategy, doesn’t lend itself to predictable cause-and-effect relationships.â€The Delusion of Lasting Success: “In a free market system, high profits tend to decline thanks to what one economist called ‘the erosive forces of imitation, competition, and expropriation.’ Rivals copy the leader’s winning ways, new companies enter the market, consulting companies spread best practices, and employees move from company to company.â€The book also includes: the Delusion of Single Explanations, the Delusion of Connecting the Winning Dots, the Delusion of Rigorous Research, and the Delusion of the Wrong End of the Stick.Rosenzweig hopes this book will “help managers think for themselves.â€
As best summarized by the author: "The central idea in this book is that our thinking about business is shaped by a number of delusions...More recently, cognitive psychologists have identified biases that affect the way individuals make decisions under uncertainty. this book is about a different set of delusions, the ones that distort our understanding of company performance, that make it difficult to know why one company succeeds and another fails. These errors of thinking pervade much that we read about business, whether in leading magazines or scholarly journals or management bestsellers. They cloud our ability to think clearly and critically about the nature of success in business."The book then goes on to present the nine delusions excerpted below:"Delusion One: The Halo Effect - The tendency to look at a company's overall performance and make attributions about its culture, leadership, values, and more. In fact, many things we commonly claim drive performance are simply attributions based on prior performance.Delusion Two: The Delusion of Correlation and Causality - Two things may be correlated, but we may not know which one causes which. Does employee satisfaction lead to high performance? The evidence suggests it's mainly the other way around - company success has a stronger impact on employee satisfaction.Delusion Three: The Delusion of Single Explanation - Many studies show that a particular factor - strong company culture of customer focus or great leadership - leads to improved performance. But since many of these factors are highly correlated, the effect of each one is usually less than suggested.Delusion Four: The Delusion of Connecting the Winning Dots - If we pick a number of successful companies and search for what they have in common, we'll never isolate the reasons for their success, because we have no way of comparing them with less successful companies.Delusion Five: The Delusion of Rigorous Research - If the data aren't good quality, it doesn't matter how much we have gathered or how sophisticated our research methods appears to be.Delusion Six: The Delusion of Lasting Success - Almost all high performing companies regress over time. The promise of a blueprint for lasting success is attractive but not realistic.Delusion Seven: The Delusion of Absolute Performance - Company performance is relative, not absolute. A company can improve and fall further behind its rivals at the same time.Delusion Eight: The Delusion of the Wrong End of the Stick - It may be true that successful companies often pursued a highly focused strategy, but that doesn't mean highly focused strategies often lead to success.Delusion Nine: The Delusion of Organizational Physics - Company performance doesn't obey immutable laws of nature and can't be predicted with the accuracy of science - despite our desire for certainty and order."Every now and then one comes across a book, that makes its reader take a step back and re-assess his views, experiences and readings. The Halo Effect is one of these books. It delivers both on account of the content and also of the numerous corporate examples and references to leading work in the leadership/management space to illustrate the concepts presented. A very refreshing and highly recommended read!Below are excerpts from the book that I found particularly insightful:1- "In fact, for all the secrets and formulas, for all the self-proclaimed thought leadership, success in business is as elusive as ever."2- "...There was talk, over and over, about customer orientation and leadership and organizational efficiency, but these things are hard to measure objectively, so we tend to make attributions about them based on things we do feel certain about - revenues and profits and share price. We may not really know what leads to high performance, so we reach for simple phrases to make sense of what happened."3- "If we start with the full data set and look objectively at many years of company performance, we find the dominant pattern is not one of enduring performance at all, but one of rise and fall, of growth and decline. Foster and Kaplan conclude: "...Managing for survival, even among the best and most revered corporations does not guarantee strong long term performance for shareholders. In fact, just the opposite is true. In the long run, the markets always win"."4- "March and Sutton explain: "In its efforts to satisfy these often conflicting demands, the organizational research community sometimes responds by saying that inferences about the causes of performance cannot be made from the data available, and simultaneously goes ahead to make such inference.""5- "We can't turn back the clock, change one variable, and then run the experiment again...It's easy to blame one man for a company woe's, but these sorts of attributions, while appealing for their simplicity, may not provide the best basis on which to manage a company."6- "...An organization isn't a system of mechanical parts, interchangeable and replaceable. It's better understood as a sociotechnical system, a combination of mean and machines, of people and things, of hardware and software, but also of ideas and attitudes. Some technical elements can often be copied and applied with predictable results...but when we begin to examine how those technical systems interact with social systems, with people and values and attitudes and expectations, the results are harder to predict."7- "Managers quite naturally find it easier to keep the attention on execution, which everyone will always agree can be done better."8- "What leads to high performance?...we're left with two broad categories: strategic choice and execution...In spite of our desire for simple steps, the reality of management is much more uncertain that we would often like to admit - and much more so that our comforting stories would have us believe."9- "As Tom Peters observed: "To be excellent, you have to be consistent. When you're consistent, you're vulnerable to attach. Yes, it's a paradox. Now deal with it.""
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