Ultra-high-frequency lead–lag relationship and information arrival

To our knowledge, this paper is the first study on the effect of information arrival on the lead–lag relationship amongst related spot instruments. Based on a large data-set of ultra-high-frequency transaction prices time-stamped to the millisecond of the S&P500 index and its two most liquid tracking ETFs, we find that their lead–lag relationship is affected by the rate of information arrival whose proxy is the unexpected trading volume of these instruments. Specifically, when information arrives, the leadership of the leading instrument may strengthen or weaken depending on whether the leading or lagging instrument responds to that information. An increase in the unexpected volume of the leader strengthens its leadership whereas an increase in the unexpected volume of the lagger weakens this leadership. In addition to the strength of leadership, an increase in the unexpected volume in response to information arrival may also have opposite effects on the lead–lag correlation coefficient depending on whether that volume increase belongs to the leader or the lagger. Finally, we find that sophisticated investors have a more significant effect on the lead–lag relationship than non-sophisticated ones.     

Informed Traders,Intervention, and Price Leadership: A Deeper View of the Microstructure of the Foreign Exchange Market

This article identifies price leadership patterns in foreign exchange trading, with a focus on central bank intervention as an informational trigger for leadership positioning. Granger causality tests applied to DM/US$ spot rate quotes reveal Deutsche Bank as a price leader up to 60 minutes prior to Bundesbank interventionary reports. By the minus 25-minute mark, interbank quote adjustments become two-way Granger-causal. These results suggest that central bank activity is revealed in stages: first to the price leader, then to competitors, and lastly to the general public.     

Discovering your authentic leadership

The ongoing problems in business leadership over the past five years have underscored the need for a new kind of leader in the twenty-first century: the authentic leader. Author Bill George, a Harvard Business School professor and the former chairman and CEO of Medtronic, and his colleagues, conducted the largest leadership development study ever undertaken. They interviewed 125 business leaders from different racial, religious, national, and socioeconomic backgrounds to understand how leaders become and remain authentic. Their interviews showed that you do not have to be born with any particular characteristics or traits to lead. You also do not have to be at the top of your organization. Anyone can learn to be an authentic leader. The journey begins with leaders understanding their life stories. Authentic leaders frame their stories in ways that allow them to see themselves not as passive observers but as individuals who learn from their experiences. These leaders make time to examine their experiences and to reflect on them, and in doing so they grow as individuals and as leaders. Authentic leaders also work hard at developing self-awareness through persistent and often courageous self-exploration. Denial can be the greatest hurdle that leaders face in becoming self-aware, but authentic leaders ask for, and listen to, honest feedback. They also use formal and informal support networks to help them stay grounded and lead integrated lives. The authors argue that achieving business results over a sustained period of time is the ultimate mark of authentic leadership. It may be possible to drive short-term outcomes without being authentic, but authentic leadership is the only way to create long-term results.     

财务领导力修炼——2009中国CFO年度人物特别报道

对大多数人来说,财务领导力听起来很时髦,但其实它是老问题。当前复杂的经济环境使首席财务官(CFO)们意识到,财务领导力并非是赶时髦的东西,实际上,公司急需财务领导力。     

In praise of the incomplete leader

Today's top executives are expected to do everything right, from coming up with solutions to unfathomably complex problems to having the charisma and prescience to rally stakeholders around a perfect vision of the future. But no one leader can be all things to all people. It's time to end the myth of the complete leader, say the authors. Those at the top must come to understand their weaknesses as well as their strengths. Only by embracing the ways in which they are incomplete can leaders fill in the gaps in their knowledge with others' skills.The incomplete leader has the confidence and humility to recognize unique talents and perspectives throughout the organization--and to let those qualities shine. The authors' work studying leadership over the past six years has led them to develop a framework of distributed leadership. Within that model, leadership consists of four capabilities: sensemaking, relating, "visioning," and inventing. Sensemaking involves understanding and mapping the context in which a company and its people operate. A leader skilled in this area can quickly identify the complexities of a given situation and explain them to others. The second capability, relating, means being able to build trusting relationships with others through inquiring (listening with intention), advocating (explaining one's own point of view), and connecting (establishing a network of allies who can help a leader accomplish his or her goals). Visioning, the third capability, means coming up with a compelling image of the future. It is a collaborative process that articulates what the members of an organization want to create. Finally, inventing involves developing new ways to bring that vision to life. Rarely will a single person be skilled in all four areas. That's why it's critical that leaders find others who can offset their limitations and complement their strengths. Those who don't will not only bear the burden of leadership alone but will find themselves at the helm of an unbalanced ship.     

领导情绪劳动对员工组织认同的影响研究——变革型领导的中介作用

基于中国文化情境,使用跨层次分析方法考量领导情绪劳动对变革型领导和员工组织认同的影响。结果表明:浅层行为与组织认同负相关,深层行为、真实情绪表现分别与组织认同正相关;变革型领导在领导情绪劳动与员工组织认同关系中起部分中介作用;领导成员交换关系在变革型领导与员工组织认同之间起调节作用。因此,企业领导宜调节自己的情绪和塑造自己变革型领导风格,增强员工组织认同感,提升管理效率。     

Relationships between leader behaviors and audit team performance

This study considers the nature and importance of leadership in the audit process. The relationships between audit team performance and leader behaviors, which are practised by in-charge auditors to supervise staff assistants, are examined in a field experiment. The results identify a number of leader behaviors which relate, either directly or through some intermediary factors, to audit team performance. For example, high performing audit teams tended to be supervised by in-charge auditors who allowed staff innovation, were considerate to the staff's personal needs, administered frequent positive reinforcement, relied heavily on time budgets, assigned a small number of tasks per staff member and administered negative reinforcement infrequently. These and other results appear to have implications for practicing auditors as well as future research in the area.     

Leadership development in the age of the algorithm

By now we expect personalized content--it's routinely served up by online retailers and news services, for example. But the typical leadership development program still takes a formulaic, one-size-fits-all approach. And it rarely happens that an excellent technique can be effectively transferred from one leader to all others. Someone trying to adopt a practice from a leader with a different style usually seems stilted and off--a Franken-leader. Breakthrough work at Hilton Hotels and other organizations shows how companies can use an algorithmic model to deliver training tips uniquely suited to each individual's style. It's a five-step process: First, a company must choose a tool with which to identify each person's leadership type. Second, it should assess its best leaders, and third, it should interview them about their techniques. Fourth, it should use its algorithmic model to feed tips drawn from those techniques to developing leaders of the same type. And fifth, it should make the system dynamically intelligent, with user reactions sharpening the content and targeting of tips. The power of this kind of system--highly customized, based on peer-to-peer sharing, and continually evolving--will soon overturn the generic model of leadership development. And such systems will inevitably break through any one organization, until somewhere in the cloud the best leadership tips from all over are gathered, sorted, and distributed according to which ones suit which people best.     

7 transformations of leadership

Most developmental psychologists agree that what differentiates one leader from another is not so much philosophy of leadership, personality, or style of management. Rather, it's internal "action logic"--how a leader interprets the surroundings and reacts when his or her power or safety is challenged. Relatively few leaders, however, try to understand their action logic, and fewer still have explored the possibility of changing it. They should, because leaders who undertake this voyage of personal understanding and development can transform not only their own capabilities but also those of their companies. The authors draw on 25 years of consulting experience and collaboration with psychologist Susanne Cook-Greuter to present a typology of leadership based on the way managers personally make sense of the world around them. Rooke and Torbert classify leaders into seven distinct actionlogic categories: Opportunists, Diplomats, Experts, Achievers, Individualists, Strategists, and Alchemists-the first three associated with below-average performance, the latter four with medium to high performance. These leadership styles are not fixed, the authors say, and executives who are willing to work at developing themselves and becoming more self-aware can almost certainly move toward one of the more effective action logics. A Diplomat, for instance, can succeed through hard work and self-reflection at transforming himself into a Strategist. Few people may become Alchemists, but many will have the desire and potential to become Individualists and Strategists. Corporations that help their executives and leadership teams to examine their action logics can reap rich rewards.     

Thinking about ... leadership. Warts and all

Does using Tyco's funds to purchase a $6,000 shower curtain and a $15,000 dog-shaped umbrella stand make Dennis Kozlowski a bad leader? Is Martha Stewart's career any less instructive because she may have sold some shares on the basis of a tip-off? Is leadership synonymous with moral leadership? Before 1970, the answer from most leadership theorists would certainly have been no. Look at Hitler, Stalin, Pol Pot, Mao Tsetung--great leaders all, but hardly good men. In fact, capricious, murderous, high-handed, corrupt, and evil leaders are effective and commonplace. Machiavelli celebrated them; the U.S. constitution built in safeguards against them. Everywhere, power goes hand in hand with corruption--everywhere, that is, except in the literature of business leadership. To read Tom Peters, Jay Conger, John Kotter, and most of their colleagues, leaders are, as Warren Bennis puts it, individuals who create shared meaning, have a distinctive voice, have the capacity to adapt, and have integrity. According to today's business literature, to be a leader is, by definition, to be benevolent. But leadership is not a moral concept, and it is high time we acknowledge that fact. We have as much to learn from those we would regard as bad examples as we do from the far fewer good examples we're presented with these days. Leaders are like the rest of us: trustworthy and deceitful, cowardly and brave, greedy and generous. To assume that all good leaders are good people is to be willfully blind to the reality of the human condition, and it severely limits our ability to become better leaders. Worse, it may cause senior executives to think that, because they are leaders, they are never deceitful, cowardly, or greedy. That way lies disaster.     

The leadership journey

It isn't always easy to change leadership hats or to alter the way you assess a business problem. Under pressure, most executives fall back on the management style or approach that worked in the last crisis they faced. But old approaches rarely work in new and demanding situations. Just ask Leonard Schaeffer, chairman and CEO of WellPoint Health Networks, one of the country's largest and most successful managed-care companies. In this account, he describes how he consciously adopted three very different styles of leadership at critical points during his 30-year career, depending on the business challenges at hand. Schaeffer headed up the U.S. Health Care Finance Administration during the Carter years--and led the charge toward more efficient work practices at that agency. Then he transformed Blue Cross of California from a floundering bureaucracy losing close to $1 million each day into a strong public company, WellPoint. The dire circumstances at Blue Cross had dictated that Schaeffer initially be an autocratic leader, which he considers the managerial equivalent of being an emergency room surgeon--forced to do whatever it takes to save a patient's life. But as the company rebounded, the CEO shed that "any decision is better than no decision" style. He has become a participative, hands-off leader-setting strategies and goals from above but letting WellPoint's line managers and executives figure out how best to achieve those goals. Most recently, Schaeffer has turned into a reformer--a leader who works with one foot outside the company to spur changes in health care and society. There are pitfalls in switching leadership styles, Schaeffer admits, but this flexibility is necessary for realizing corporate- and personal-success.     

Fire, snowball, mask, movie: how leaders spark and sustain change

What does it take for an average manager to become a highly effective leader? There are countless books, models, and formulas for success. But the truth is that leadership transformation is deeply dependent on circumstances. The key for those who seek it is to absorb the insights that can be drawn from the successful experiences of others. During their in-depth study of seven CEOs, Fuda and Badham uncovered seven interdependent metaphors, which they went on to test with more than 10,000 managers on four continents. The authors discuss four of those metaphors--fire, snowball, mask, and movie--here, in the context of individual managers' experiences.     

The benefit of being a local leader: Evidence from firm-specific stock price crash risk

This paper investigates whether being a local leader affects a firm's stock price crash risk. We find that local leadership, in terms of being a relatively large firm in a surrounding locality, decreases a firm's stock price crash risk. The results are robust to both an instrumental variable and a difference-in-differences regression approach. We also document that the impact on crash risk depends on the extent to which local communities are likely to be monitoring local firms through their stock market participation rates, the information environment surrounding these firms, and the level of industry competition. Overall, our results highlight a novel benefit of being a local leader, as it is associated with a higher level of local monitoring which renders the firm less prone to crash risk.     

Building a leadership brand

How do some firms produce a pipeline of consistently excellent managers? Instead of concentrating merely on strengthening the skills of individuals, these companies focus on building a broad organizational leadership capability. It's what Ulrich and Smallwood--cofounders of the RBL Group, a leadership development consultancy--call a leadership brand. Organizations with leadership brands take an "outside-in" approach to executive development. They begin with a clear statement of what they want to be known for by customers and then link it with a required set of management skills. The Lexus division of Toyota, for instance, translates its tagline--"The pursuit of perfection"--into an expectation that its leaders excel at managing quality processes. The slogan of Bon Secours Health System is "Good help to those in need." It demands that its managers balance business skills with compassion and caring. The outside-in approach helps firms build a reputation for high-quality leaders whom customers trust to deliver on the company's promises. In examining 150 companies with strong leadership capabilities, the authors found that the organizations follow five strategies. First, make sure managers master the basics of leadership--for example, setting strategy and grooming talent. Second, ensure that leaders internalize customers' high expectations. Third, incorporate customer feedback into evaluations of executives. Fourth, invest in programs that help managers hone the right skills, by tapping customers to participate in such programs. Finally, track the success of efforts to build leadership bench strength over the long-term. The result is outstanding management that persists even when individual executives leave. In fact, companies with the strongest leadership brands often become "leader feeders"--firms that regularly graduate leaders who go on to head other companies.     

Wilderness leadership--on the job

Lessons taught and learned in the challenging, unpredictable environment of a wilderness expedition have direct applications to today's business world. That's according to two directors at the National Outdoor Leadership School, who in this article share five principles for expedition--and career-success. (1) Practice leadership. The fundamental philosophy of NOLS is that leadership can be learned-even by those who don't think they have a natural ability to lead. You just need to practice making decisions, then reflecting on and learning from the outcomes. (2) Lead from everywhere. In an expedition group, or in an organization, you can play four roles, often simultaneously: designated leader, active follower, peer leader, and self-leader. Effective teamwork rests on knowing how and when to step into each role. (3) Behave well Leadership means getting along in a diverse group, cooperating with teammates, effectively resolving conflict, and keeping yourself and others motivated. (4) Keep calm. On expeditions and in business, people often end up scrapping not only Plan A but also Plan B. Leadership involves planning for things you can control, letting go of things you can't, expecting the unexpected, and maintaining composure when unforeseen circumstances arise. (5) Disconnect to connect. The fast-paced, high-tech world of work wreaks havoc on leaders' ability to engage in the careful, strategic thinking required of them. It's important to disconnect from 21st-century distractions and to connect with nature once in a while.     

The curse of the superstar CEO

When struggling companies look for a new chief executive today, the one quality they prize above all others is charisma. But once they've recruited a larger-than-life leader, they often find that their troubles only get worse. Indeed, as the author's new research painfully reveals, the widespread belief in the powers of charismatic CEOs can be problematic. Why? First, Khurana says, there's no conclusive evidence that charismatic leadership affects an organization's performance. And yet--as Kodak's story over the past decade reveals--when a company is faltering, boards feel compelled to oust the incumbent chief executive and bring in a corporate savior. Second, the insistence on finding a charismatic leader, combined with the undefinable nature of charisma, results in selection processes that are overly conservative and even irrational. Boards end up considering only candidates who have already achieved the rank of CEO or president at a high-performing, high-profile company, even if they are not right for the job. Third, charismatic leaders deliberately destabilize organizations. This can result in a more vibrant company, as it did at General Electric during Jack Welch's tenure, but it can also leave a troubled legacy for the organization to overcome, as GE, Ford, and Enron have all found. Faith in a company, a product, or an idea can unleash tremendous innovation and productivity. But the extravagant hopes invested in charismatic CEOs resemble not mature faith but a belief in magic. If we are willing to reconsider our notion of leadership, this age of faith can be followed by an era of faith and reason.     

Covert leadership: notes on managing professionals. Knowledge workers respond to inspiration, not supervision

The orchestra conductor is a popular metaphor for managers today--up there on the podium in complete control. But that image may be misleading, says Henry Mintzberg, who recently spent a day with Bramwell Tovey, conductor of the Winnipeg Symphony Orchestra, in order to explore the metaphor. He found that Tovey does not operate like an absolute ruler but practices instead what Mintzberg calls covert leadership. Covert leadership means managing with a sense of nuances, constraints, and limitations. When a manager like Tovey guides an organization, he leads without seeming to, without his people being fully aware of all that he is doing. That's because in this world of professionals, a leader is not completely powerless--but neither does he have absolute control over others. As knowledge work grows in importance, the way an orchestra conductor really operates may serve as a good model for managers in a wide range of businesses. For example, Mintzberg found that Tovey does a lot more hands-on work than one might expect. More like a first-line supervisor than a hands-off executive, he takes direct and personal charge of what is getting done. In dealing with his musicians, his focus is on inspiring them, not empowering them. Like other professionals, the musicians don't need to be empowered--they're already secure in what they know and can do--but they do need to be infused with energy for the tasks at hand. This is the role of the covert leader: to act quietly and unobtrusively in order to exact not obedience but inspired performance.     

Why entrepreneurs don't scale

It's well known that many executives who excel at starting businesses or projects fizzle out--in other words, they fail to "scale"--as their ventures grow. But the reasons have remained fuzzy. In this article, leadership coach John Hamm identifies four management tendencies that work for small-company or business-unit leaders but become Achilles' heels as those individuals try to run larger organizations. The first tendency is loyalty to comrades. In entrepreneurial mode, you need to lead as though you're in charge of a combat unit on the wrong side of enemy lines. But blind loyalty can become a liability in managing a complex organization. The second tendency, task orientation, is critical in driving toward a big product launch, but excessive attention to detail can cause a large organization to lose sight of its long-term goals. The third tendency, single-mindedness, is important in a visionary unleashing a revolutionary product or service on the world but can limit the company's potential as it grows. And the fourth tendency, working in isolation, is fine for the brilliant scientist focused on an ingenious idea. But it's disastrous for a leader whose expanding organization increasingly relies on many other people. Leaders who scale deal honestly with problems and quickly weed out nonperformers. They see past distractions and establish strategic priorities. They learn how to deal effectively with diverse employees, customers, and external constituencies. And, most important, they make the company's continuing health and welfare their top concern.     

Crucibles of leadership

What makes a great leader? Why do some people appear to know instinctively how to inspire employees--bringing out their confidence, loyalty, and dedication--while others flounder again and again? No simple formula can explain how great leaders come to be, but Bennis and Thomas believe it has something to do with the ways people handle adversity. The authors' recent research suggests that one of the most reliable indicators and predictors of true leadership is the ability to learn from even the most negative experiences. An extraordinary leader is a kind of phoenix rising from the ashes of adversity stronger and more committed than ever. In interviewing more than 40 leaders in business and the public sector over the past three years, the authors discovered that all of them--young and old alike--had endured intense, often traumatic, experiences that transformed them and became the source of their distinctive leadership abilities. Bennis and Thomas call these shaping experiences "crucibles," after the vessels medieval alchemists used in their attempts to turn base metals into gold. For the interviewees, their crucibles were the points at which they were forced to question who they were and what was important to them. These experiences made them stronger and more confident and changed their sense of purpose in some fundamental way. Through a variety of examples, the authors explore the idea of the crucible in detail. They also reveal that great leaders possess four essential skills, the most critical of which is "adaptive capacity"--an almost magical ability to transcend adversity and emerge stronger than before.     

Are you picking the right leaders?

When it comes time to hire or promote, top executives routinely overvalue certain skills and traits while overlooking others. Intuitively, for example, they might seek out team players, people who shine operationally, dynamic public speakers, or those who are demonstrably hungry for greater responsibility. But some attributes that seem like good indicators of leadership potential are, paradoxically, just the reverse. Team players and those who excel operationally often make better seconds in command. Many a great public speaker lacks the subtle one-on-one persuasive powers that a top leader needs. And shows of raw ambition may be more an indicator of ego than of leadership talent. Unfortunately, few organizations have the right procedures in place to produce complete and accurate pictures of their top prospects. Assessments are often based on hearsay, gossip, and casual observation. Many companies spend too much effort trying to develop leaders and not enough effort trying to identify them. A new evaluation process will help you avoid that trap. Candidates are assessed by a group of people who have observed their behavior directly over time and in different circumstances. Using a carefully crafted series of questions, the group can probe a wide range of leadership criteria, including such "soft" attributes as personal integrity, that are difficult to assess. Without such information, senior management will remain vulnerable to misidentifying leadership talent, and the wrong people will continue to make their way up the corporate ladder.