Are Leaders Born or Made? Genetics, Personality, Training, and Leadership Development
Updated: 4 days ago
Author: Ukrainian Psychological Hub · Published: September 25, 2026 · Editorial Policy
Leaders are neither simply born nor simply made. The strongest scientific answer is developmental: people differ in partly heritable dispositions that can affect whether they seek, obtain, and enact leadership roles, while experience, opportunity, learning, feedback, social context, and deliberate development shape what those dispositions become. Behavioral-genetic studies have repeatedly found a heritable component in leadership role occupancy, but role occupancy means holding a leadership position; it is not the same construct as being an effective leader. A male-twin study estimated that genetic differences accounted for about 30% of variance in leadership role occupancy in that sample, with nonshared environmental differences accounting for the remainder (Arvey et al., 2006). A later U.S. twin study estimated heritability of role occupancy at 24% (De Neve et al., 2013).
Those percentages are population statistics, not a recipe for an individual. A 30% heritability estimate does not mean that 30% of one person's leadership is genetic, that leadership is 30% fixed, or that the remaining 70% can automatically be produced by training. Heritability describes variation among people in a particular population under particular environmental conditions. It can change as environments, opportunities, and ages change. A 2024 three-wave study following 1,079 Danish twin pairs over ten years found that the estimated heritability of leadership role occupancy was lower in younger adulthood and rose as participants accumulated labor-market experience, reaching roughly 28% in the later comparison; the authors explicitly interpreted this as evidence that genetic effects on role occupancy are dynamic and environmentally conditioned (Florczak et al., 2024).
The other half of the question is equally important. Leadership can be developed. A large meta-analysis of 335 independent employee samples found positive effects of leadership training on learning, transfer to the job, and organizational or performance-related results, with corrected effects of δ = .73, .82, and .72 respectively (Lacerenza et al., 2017). A separate meta-analysis of experimental and quasi-experimental leadership interventions found that manipulating leadership through training, assignment, scenarios, and related interventions produced positive causal effects across a broad research base (Avolio et al., 2009). Training evidence therefore rules out a strict biological-destiny account. It does not imply that every person can be trained to the same level, in every role, under every condition.
Are Leaders Born or Made? The Short Answer
Leadership is best understood as an interaction among dispositions, development, opportunity, behavior, followers, and context. Some people begin with characteristics that make leadership emergence easier in particular settings. Some acquire capabilities through education, work experience, feedback, mentoring, practice, and repeated leadership episodes. Organizations also decide who gets access to developmental assignments, authority, information, networks, and legitimate leadership roles. Followers decide, formally or informally, whose influence they accept. The final outcome is therefore not located in a single gene, trait, course, style, or moment.
The phrase “born leader” compresses several different questions into one. Is a person likely to be noticed as leader-like? Is the person likely to seek leadership? Will the group allow that person to emerge? Will an organization appoint the person to a formal role? Once appointed, will the person actually improve team or organizational outcomes? These are separate outcomes. Research on leadership role occupancy, leader emergence, leadership behavior, and leadership effectiveness cannot be treated as if they all measured one underlying thing.
The most defensible conclusion is therefore asymmetric. There is evidence for partly heritable variation in some antecedents and manifestations of leadership, especially who occupies or emerges into leadership roles. There is also substantial evidence that leadership-relevant knowledge, skills, behaviors, and outcomes can change through development and intervention. No credible evidence establishes a class of people who are biologically destined to be effective leaders regardless of context, and no training literature establishes that development can erase all individual differences.
A Construct Map: What the Leadership Evidence Is Actually Measuring
A leadership trait is a relatively enduring individual difference, such as extraversion or conscientiousness. A leadership behavior is an observable action, such as consulting followers, setting goals, giving feedback, or structuring work. A leadership style is a recurring pattern of behavior defined within a particular framework. A leadership theory is a broader explanatory model that proposes how leadership works, why certain behaviors or relationships matter, and under what conditions outcomes should follow. A trait can influence behavior, and a theory can contain style-like constructs, but these terms should not be used as synonyms.
Leader emergence concerns who becomes recognized as a leader or influential coordinator, especially in groups where leadership is initially unsettled. Leadership effectiveness concerns what happens after influence or responsibility is exercised: performance, learning, decision quality, follower outcomes, ethical conduct, or other specified criteria. Followership concerns how followers perceive, respond to, grant, resist, or participate in leadership processes. A person can emerge easily and lead poorly; another can emerge slowly and become effective once expertise, trust, and coordination become visible.
Power is the capacity to affect outcomes. Authority is a socially or institutionally legitimate right to direct action. Status is socially conferred rank, regard, or prestige. Dominance is one route to rank based more on intimidation or coercive capacity; prestige is a route based more on freely granted respect for valued competence or knowledge. These constructs can shape leader emergence and followership without becoming equivalent to leadership effectiveness.
Management refers to a broader set of organizational functions that can include planning, budgeting, staffing, coordination, control, and administration. Supervision is a formal relationship in which one person oversees another person's work. Both can contain leadership, but neither guarantees it. The behavioral-genetic literature often uses supervisory or managerial role occupancy because it is measurable; that measurement choice should not be mistaken for a definition of leadership itself.
How to Read the Evidence: Correlation, Prediction, Mediation, Longitudinal Change, and Causality
Correlation means that two measured variables vary together. It does not establish that one causes the other. Prediction asks whether information available at one point improves forecasts of another variable, often at a later point or in a held-out criterion; prediction can be useful without identifying a causal mechanism. When personality predicts leader emergence, the result does not by itself show that changing the trait would cause a person to emerge as a leader.
Mediation is a model in which the association between an antecedent and an outcome is statistically transmitted through an intermediate variable. A mediation estimate can support a proposed process, but strong causal interpretation requires temporal ordering, appropriate design, measurement quality, and control of plausible alternatives. For example, showing that a personality variable statistically mediates part of a genetic association would still be different from demonstrating a simple biological pathway from gene to leadership.
Longitudinal evidence measures variables across time and is essential for studying development. It can establish temporal patterns and within-person change more clearly than a cross-sectional snapshot, but longitudinal observation alone does not automatically eliminate confounding. Experimental and strong quasi-experimental intervention designs provide more direct evidence of causality because researchers manipulate an input or exploit a credible comparison structure. This article therefore gives special weight to meta-analyses of interventions when evaluating whether leadership-related outcomes can be changed.
What Does “Born” Mean in Leadership Research?
In everyday language, “born” suggests an innate essence: a person either has leadership in them or does not. Behavioral genetics asks a narrower statistical question. Researchers compare patterns of similarity among relatives, often identical and fraternal twins, to estimate how much observed variation in a measured outcome is associated with genetic variation under the conditions of that sample. The result is a heritability estimate for a measured phenotype, not a percentage of a person's identity.
That distinction matters because leadership research has used very different phenotypes. Some studies measure whether someone holds supervisory or managerial positions. Others measure self-reported transformational or transactional leadership. Other research measures whether a person becomes influential in an initially leaderless group. These outcomes overlap, but they are not interchangeable.
Leadership role occupancy
Leadership role occupancy asks whether a person occupies formal leadership positions. In the 2006 male-twin study, 238 identical twins and 188 fraternal twins were compared, and roughly 30% of variance in role occupancy was attributed to genetic factors in that sample (Arvey et al., 2006). A 2007 study of 214 identical and 178 fraternal female twins estimated a similar genetic component and also identified a developmental factor involving work experiences that remained relevant after genetic influences were considered (Arvey et al., 2007).
A later study using the National Longitudinal Study of Adolescent Health estimated 24% heritability for leadership role occupancy (De Neve et al., 2013). Taken together, these studies make one claim plausible: individual differences with genetic components contribute to who ends up in leadership roles. They do not tell us that the people who obtain those roles lead well.
Leadership style
An older twin study used self-report instruments including the Multifactor Leadership Questionnaire and reported heritable components for higher-order factors resembling transactional and transformational leadership (Johnson et al., 1998). These estimates concern variance in measured style-related tendencies in one twin sample. They should not be generalized into a claim that a named leadership style is genetically fixed. The study relied on self-report measures, the factors were derived from the measurement model used, and style is conceptually different from role occupancy and objective effectiveness. For a broader map of style constructs, see Leadership Styles: Lewin, Goleman, Transformational, Servant, and Situational Leadership.
Leader emergence
Leader emergence asks who becomes influential or is recognized as a leader in a group, often before any formal appointment exists. Emergence is shaped by observable behavior, participation, confidence, social skill, group prototypes, task expertise, status cues, and other person-by-situation processes. A person can emerge readily and still perform poorly after gaining responsibility. Conversely, a quieter member may contribute strongly to team effectiveness without becoming the most visibly leader-like person.
A meta-analysis of leaderless group discussions combined 45 studies and 196 effect sizes and found several individual differences associated with leader emergence, with extraversion among the most consistent predictors (Ensari et al., 2011). An integrative behavioral-genetic analysis estimated that about 17% of variance in a latent leader-emergence construct was attributable to genetic influences mediated through intelligence and Big Five personality traits, while emphasizing that this estimate was a lower-bound estimate within its model (Ilies et al., 2004). Again, predicting emergence is not equivalent to proving effectiveness.
What Does “Made” Mean? Training Is Only One Developmental Path
Calling leaders “made” can also oversimplify. Development is not synonymous with a leadership course. People develop across repeated cycles of experience, interpretation, feedback, identity formation, practice, social interaction, challenge, failure, success, and changed responsibility. Organizations can accelerate or constrain those cycles by deciding who receives stretch assignments, mentoring, authority, sponsorship, and opportunities to lead consequential work.
A major review of 25 years of leader and leadership development research distinguishes leader development from leadership development. Leader development focuses mainly on expanding individual capacity, whereas leadership development includes relational and collective capacity that exists among people, not only inside one person (Day et al., 2014). Day and Dragoni further organize development across levels and time, distinguishing proximal changes such as leader identity and self-efficacy from more distal capabilities and collective outcomes (Day & Dragoni, 2015).
This distinction blocks a common mistake in the born-versus-made debate. A person can acquire knowledge and techniques without producing better leadership in a real group. Development must ultimately be demonstrated in behavior, coordination, relationships, learning, decisions, or other relevant outcomes. A certificate is evidence of exposure to a program, not evidence of leadership effectiveness.
Heritability Does Not Mean Destiny
Heritability is frequently misread because the number looks more deterministic than it is. Suppose a study estimates that 30% of variation in leadership role occupancy is associated with genetic differences. The statistic concerns variance among people, not the composition of a person. It also depends on the range of environments represented. If access to education, jobs, networks, or leadership opportunities changes, the proportion of variance attributed to genetic and environmental differences can change as well.
The 2024 Danish twin study makes this point unusually visible. The same broad outcome, leadership role occupancy, showed changing genetic influence across age and labor-market development, and the authors argued that environmental conditions can constrain or permit the expression of predispositions (Florczak et al., 2024). Heritability is therefore compatible with development. It can even be partly produced by developmental systems in which people select, evoke, or are selected into environments that match their dispositions.
The phrase “genes versus environment” is also misleading because biological and environmental influences are not cleanly independent boxes. Traits can affect which experiences people seek; institutions can amplify or suppress dispositional differences; repeated success or exclusion can alter motivation and behavior; and the same disposition can be useful in one leadership context and costly in another. Leadership is a particularly poor candidate for genetic essentialism because it is a social role and relational process whose expression depends on other people.
There is no scientifically established “leadership gene”
De Neve and colleagues reported an association between leadership role occupancy and the rs4950 variant in CHRNB3 and replicated the family-based association in a second dataset (De Neve et al., 2013). That finding is historically important, but it should not be converted into the claim that researchers discovered a leadership gene. Leadership role occupancy is a complex social phenotype, and one candidate variant cannot define, diagnose, or predict an individual's leadership destiny. The more durable result from this literature is the population-level evidence for combined genetic and environmental influence, not a single-marker explanation.
Personality Matters, but Personality Is Not Leadership
Personality traits are relatively stable patterns of thought, feeling, and behavior. Leadership behavior is what a person actually does in a leadership situation. Leader emergence is whether the person becomes recognized as a leader. Leadership effectiveness concerns outcomes. These levels are related, but a trait cannot be treated as a behavior, and a behavior cannot be treated as proof of effectiveness.
A classic Big Five meta-analysis synthesized 222 correlations from 73 samples. Extraversion showed the most consistent positive relationship with leadership; conscientiousness, openness to experience, and lower neuroticism also showed meaningful associations, whereas agreeableness was weakly related overall. The authors reported an overall multiple correlation of .48 between the Big Five and leadership criteria (Judge et al., 2002). The important detail is that the literature included both leader emergence and leadership effectiveness. A trait that helps someone become visible and influential can have a different relationship with performance after the person is in charge.
Extraversion illustrates the problem. In group settings, talkativeness, assertiveness, positive affect, and social engagement can increase visibility and opportunities to influence. That can raise the probability of emergence. It does not follow that the most extraverted person will make the best decisions, create the best team processes, or lead most effectively across all tasks and cultures. Traits alter probabilities and behavioral tendencies; they do not mechanically generate outcomes.
Intelligence predicts leadership, but modestly
Cognitive ability is another recurrent predictor. A meta-analysis of 151 independent samples from 96 sources found corrected correlations between intelligence and leadership of .21 before correction for range restriction and .27 after that correction (Judge et al., 2004). These are meaningful associations, but they are far from determinism. Leadership also requires social coordination, judgment under uncertainty, communication, motivation, ethical constraints, domain expertise, and adaptation to followers and context.
A high cognitive score cannot substitute for leadership behavior, just as strong interpersonal presence cannot substitute for sound analysis. Different roles weight capacities differently. Leading a research group, a crisis-response team, a school, a software organization, and a community initiative creates different task demands and different opportunities for individual differences to matter.
Leader Emergence and Leadership Effectiveness Are Different Outcomes
The single most important conceptual correction to the “born leader” story is to separate becoming a leader from leading effectively. Formal selection systems and informal groups can reward confidence, visibility, verbal fluency, network position, demographic expectations, status cues, or a prototype of what a leader should look like. Some of these signals correlate with useful leadership capacities. Others can create false positives.
The psychology of rank makes this especially clear. Groups can confer influence through prestige, associated with valued knowledge or competence, or through dominance, associated with intimidation and coercive leverage. These routes can both produce deference while relying on very different psychological mechanisms. See Dominance vs Prestige: Two Routes to Status, Influence, and Leadership for the distinction.
This is also why perceived charisma cannot be equated with actual effectiveness. Charismatic impressions can influence whom followers notice and trust, but effectiveness requires evidence about outcomes, and those outcomes depend on what is measured, over what time horizon, and for whom. A person can be compelling in a selection interview and ineffective in a sustained leadership role; another can be understated during emergence and highly effective once relationships, expertise, and coordination become visible.
Leadership Is Not the Same as Power, Authority, Status, or Management
A leadership role often carries formal authority and control over resources, but authority is a socially legitimate right to direct action within a system; power is the capacity to affect outcomes; status is socially conferred rank or regard; and leadership involves influence processes oriented toward collective direction and activity. These can overlap without becoming synonyms. The English Hub's dedicated bridge, Power and Leadership: Influence, Status, Authority, and Followership, owns the broader power-and-leadership intent and explains those distinctions in detail.
Management is also broader than leadership in some functions and narrower in others, depending on the theory used. Planning, budgeting, staffing, scheduling, process control, and formal supervision can be performed without strong leadership influence, while leadership can occur without a management title. A supervisor may have positional authority but little informal influence. A respected expert may exercise leadership without formal authority. Holding office therefore cannot serve as a clean proxy for effective leadership.
Why Some People Look Like “Natural Leaders”
The impression of natural leadership can be psychologically real without implying a fixed leadership essence. People enter groups with different temperaments, verbal styles, social confidence, knowledge, physical presence, motives, identities, and prior experience. Those differences affect who speaks first, frames the task, coordinates others, claims responsibility, tolerates attention, and receives deference. By the time an observer meets an adult who appears effortlessly leader-like, years of cumulative practice and selection may already be hidden behind the performance.
Cumulative advantage matters. Someone who is slightly more comfortable taking charge may receive an early opportunity. Success brings feedback, status, networks, and another opportunity. Repetition makes the behavior more fluent. Other people then interpret fluency as evidence of an inborn quality. The trajectory can be partly dispositional and strongly developmental at the same time.
Motivation also matters. Not everyone who could lead wants to. Some people value influence or responsibility; others avoid the costs of authority, conflict, visibility, or accountability. The related article Power Aversion: Why Some People Avoid Power, Leadership, and Responsibility examines why reluctance to seek power or leadership can be psychologically meaningful rather than simply a lack of ability.
Can Leadership Be Taught? What the Training Evidence Shows
Yes, leadership-relevant knowledge and behavior can be taught, and well-designed programs can improve outcomes. The strongest broad evidence comes from a 2017 meta-analysis of 335 independent employee samples. Leadership training was associated with positive effects on trainees' reactions (δ = .63), learning (δ = .73), transfer of learning to work (δ = .82), and results (δ = .72) (Lacerenza et al., 2017). The overall corrected effect was positive and substantial, although effects varied across program design and outcome.
The same meta-analysis found that design choices mattered. Needs analysis, feedback, multiple delivery methods, opportunities to practice, spaced sessions, and certain face-to-face and on-site formats were associated with stronger outcomes in at least some criteria (Lacerenza et al., 2017). The pattern was not identical for every outcome, which is precisely why “leadership training works” should not be interpreted as “any leadership training works equally well.”
Causal evidence is especially valuable here because much leadership research is correlational. A meta-analysis focused on experimental and quasi-experimental studies identified 200 leadership-intervention studies and found an overall positive impact; in a trimmed dataset of 134 studies and 11,552 unique participants, the corrected overall effect was about d = .67, and training/development interventions also showed positive effects (Avolio et al., 2009). This supports the proposition that changing leadership inputs can change downstream outcomes, while still leaving substantial heterogeneity across interventions, theories, settings, and measures.
What training can change
Training can improve declarative knowledge, procedural knowledge, communication techniques, goal-setting, feedback skills, conflict management, coaching behaviors, decision processes, and specific leadership behaviors. Repeated practice can increase fluency. Feedback can expose discrepancies between self-perception and how others experience a leader. Developmental assignments can expand the range of situations a person knows how to handle.
What training cannot guarantee
Training cannot guarantee that every participant will seek leadership, receive an opportunity, transfer learning into behavior, build follower trust, make good decisions under pressure, or produce superior long-term outcomes. Nor does a short-term pretest-posttest improvement prove durable development. Program evaluation needs to distinguish reaction, learning, behavioral transfer, and results. It also needs appropriate comparison groups and follow-up periods when causal or developmental claims are made.
Leadership Development Is a Longitudinal Process
Development is a claim about change over time, so longitudinal evidence is central. A 2024 scoping review identified only 19 true longitudinal leadership-development studies meeting its criteria, encompassing 2,776 participants and 88 waves of data. The review found useful evidence but also limited contextual diversity and substantial methodological variation (Cotrim & Da Silva Gomes, 2024). The field therefore has a stronger basis for saying that development occurs than for specifying one universal developmental sequence.
The broader 25-year review by Day and colleagues emphasizes development through intrapersonal and interpersonal processes, multi-source feedback, and longitudinal change (Day et al., 2014). Day and Dragoni argue that development should be evaluated through outcomes that unfold at different times and levels, rather than by treating attendance at a program as the endpoint (Day & Dragoni, 2015).
This makes the born-versus-made debate less like a balance scale and more like a trajectory problem. Initial differences matter. Experiences matter. Timing matters. Opportunities matter. The environment changes which dispositions can be expressed and rewarded. The person also changes the environment by choosing roles, seeking feedback, forming relationships, and accepting or rejecting responsibility.
Can Personality Change, or Are Leadership Traits Fixed?
Personality is relatively stable, especially compared with momentary behavior, but relative stability is not immutability. People can change in trait measures across adulthood, and interventions can be associated with measurable trait change. That matters because a simplistic “born leader” argument often assumes that personality is permanently set and therefore development can only add superficial skills.
A systematic review of 207 intervention studies found average changes in personality-trait measures of about d = .37 over an average of 24 weeks, with the largest changes in emotional stability and then extraversion (Roberts et al., 2017). Most of the evidence came from clinical interventions, so it should not be converted into a claim that leadership programs routinely reshape personality. It does establish the narrower point that adult personality measures are capable of change.
Leadership development also does not require personality transformation. A person can learn to prepare more systematically, ask better questions, delegate more effectively, regulate responses under pressure, seek dissent, communicate expectations, structure meetings, and repair conflict while remaining recognizably the same person. Traits influence default tendencies; skills and systems can alter enacted behavior.
Do Genes Influence Leadership Through Personality?
Some behavioral-genetic research suggests overlapping genetic influences among leadership-related constructs. In the 2006 male-twin study, genetic influences on leadership role occupancy overlapped with genetic influences on personality variables such as social potency and achievement, although the authors did not find definitive evidence that those personality variables mediated the genetic association with role occupancy (Arvey et al., 2006).
A study of 107 identical and 89 fraternal female twin pairs examined overlap between transformational leadership and role occupancy. It estimated that 78% of the covariance between those two measured variables was attributable to overlapping genetic factors and 22% to overlapping environmental factors; at the same time, large portions of role-occupancy variance were explained by unique environmental influences not shared with transformational leadership (Li et al., 2012). The result illustrates why overlapping causes do not collapse two constructs into one.
Genetically influenced traits can partly channel people toward situations where leadership is more likely, but that is not a one-way biological pipeline. Environments sort people, people select environments, and institutions allocate opportunity. A genetically influenced tendency can be magnified, redirected, compensated for, or rendered irrelevant by context.
The Historical “Great Man” Idea and Modern Leadership Science
The popular image of the born leader has deep historical roots. Thomas Carlyle's lectures delivered in 1840 and published as On Heroes, Hero-Worship, and the Heroic in History in 1841 are commonly associated with the nineteenth-century “Great Man” tradition, which emphasized extraordinary individuals as drivers of history (Carlyle, 1841). That historical doctrine should not be confused with modern trait or behavioral-genetic research. Contemporary studies estimate associations and variance components; they do not revive a doctrine of heroic predestination.
Trait research itself evolved. Ralph Stogdill's 1948 review is often treated as a turning point because it challenged the idea that a fixed list of personal characteristics could explain leadership independently of situations (Stogdill, 1948). Later research did not eliminate traits; instead, better measurement and meta-analysis established that traits predict leadership outcomes while remaining embedded in situational and relational processes.
The historical lesson is useful for current SEO-era discussions of “natural leaders.” The fact that individual differences predict leadership does not restore the old Great Man logic. Modern evidence is probabilistic, multilevel, and construct-specific.
Nature and Nurture Work Together Across a Leadership Career
A developmental model can organize the evidence without pretending to calculate one universal percentage. Dispositions affect what a person finds rewarding, how easily certain behaviors are expressed, and how others initially respond. Early environments affect confidence, social learning, educational access, and opportunities to coordinate others. Later work environments provide or withhold developmental assignments, authority, networks, and feedback. Repeated experiences alter skill, self-knowledge, identity, and behavioral repertoire.
The female-twin study is instructive because it included developmental variables rather than treating the environment as an unexplained residual. Formal work experiences contributed to leadership role occupancy even after genetic factors were considered (Arvey et al., 2007). The newer Danish longitudinal twin evidence likewise suggests that the expression of genetic differences changes with labor-market experience and environmental conditions (Florczak et al., 2024).
The practical implication is not that biology is irrelevant or that environment is omnipotent. It is that development operates on a system that already contains individual differences. Effective selection and development should therefore ask what capacities a role requires, which capacities are already present, which can be developed, which constraints are contextual, and how success will be measured.
Can Anyone Become a Leader?
Many people can develop leadership capacity, but “anyone can become any kind of leader at any level” is stronger than the evidence supports. Leadership roles vary enormously in cognitive complexity, emotional demands, technical requirements, interpersonal exposure, physical risk, ethical responsibility, and scale. People also differ in motivation, opportunity, health, socioeconomic resources, discrimination exposure, prior experience, and the amount of time they want to invest in leadership.
A useful developmental claim is therefore specific: many leadership-relevant skills and behaviors are learnable, and structured interventions can improve meaningful outcomes on average. A useful selection claim is also specific: individual differences predict some leadership outcomes, but prediction is imperfect and depends on the criterion. Neither claim warrants biological fatalism or universal training promises.
This also protects against a familiar organizational error: selecting people who resemble an intuitive prototype of “leadership potential,” then giving them the developmental experiences that make the original intuition look correct. If opportunity is unequally distributed, later differences may reflect both selection and development.
Can Introverts Become Effective Leaders?
Yes. Extraversion is positively related to leadership in meta-analytic research, especially because it can facilitate visibility and emergence, but it is a probabilistic predictor rather than an eligibility requirement (Judge et al., 2002). Introversion does not imply low intelligence, low conscientiousness, poor judgment, low empathy, or inability to communicate. Nor does extraversion guarantee those capacities.
The relevant question is what behaviors the role requires and whether the person can enact them effectively. An introverted leader may need deliberate strategies for networking, public communication, rapid social contact, or high-frequency interpersonal work. An extraverted leader may need deliberate strategies for listening, restraint, information integration, and ensuring that airtime does not substitute for judgment. Development can target behavior without treating personality as a defect.
Is Charisma Inborn?
Charisma is another place where everyday language encourages essentialism. People differ in expressive style, emotional intensity, confidence, verbal fluency, appearance, and social presence, and those differences can contribute to charismatic impressions. Yet charisma in leadership research is also shaped by communication behavior, follower attributions, context, identity, and expectations.
Perceived charisma should therefore be separated from actual effectiveness. A charismatic impression can increase attention, identification, and willingness to follow. Whether it improves decision quality, team learning, ethical conduct, retention, innovation, or performance is a separate empirical question. The same rule applies to confidence: looking certain can affect emergence while saying little about whether the underlying judgment is correct.
What Makes Leadership Development More Likely to Work?
1. Define the outcome before choosing the intervention
An organization should decide whether it wants better coaching, safer decision-making, clearer delegation, stronger team learning, improved conflict handling, better succession readiness, or another specified outcome. “Become a better leader” is too broad to evaluate. Different interventions can affect learning, transfer, and results differently.
2. Start with needs analysis rather than a fashionable model
The training meta-analysis found stronger outcomes under several conditions including needs analysis, feedback, practice, and multiple delivery methods (Lacerenza et al., 2017). This supports a basic design principle: identify the gap before prescribing the program.
3. Build practice and transfer into the job
Leadership is enacted under real constraints: deadlines, ambiguous information, status differences, incentives, conflict, and consequences. Development therefore needs opportunities to apply behavior in context. Knowledge that remains in the classroom is not equivalent to behavioral transfer.
4. Use feedback as information, not as a verdict
Multi-source feedback can reveal patterns that self-report misses, but feedback is useful only when the measurement is credible, interpretable, behaviorally specific, and connected to opportunities for change. A score should not become a personality diagnosis or a permanent label.
5. Treat experience as data
Stretch assignments and repeated leadership episodes can be developmental when people receive feedback, reflect on outcomes, and have enough psychological and organizational support to learn. Experience alone can also reinforce poor habits. Ten years in leadership is not automatically ten years of development.
6. Evaluate change over time
Because leadership development is inherently temporal, stronger evaluation uses repeated measurement and meaningful follow-up rather than a single post-course satisfaction survey. The 2024 longitudinal scoping review highlights how limited the true multiwave evidence base still is (Cotrim & Da Silva Gomes, 2024).
What Organizations Should Do With the Born-vs-Made Evidence
Selection and development should be designed as complementary systems. Selection asks who currently shows capabilities relevant to a role. Development asks which capabilities can be expanded and through what experiences. Succession planning asks how both current capacity and developmental trajectory fit future roles. None of these questions is answered by calling someone a “natural leader.”
Organizations should also avoid confusing willingness to lead with competence. Highly motivated candidates can be poor leaders; reluctant candidates can be highly capable. Motivation to Lead is a distinct construct from personality, role occupancy, effectiveness, and power seeking. The cluster's planned dedicated article on Motivation to Lead will address that construct directly.
Likewise, Leadership Traits should not become an informal personality-screening ideology. Traits can improve prediction, but a valid selection system needs job-relevant criteria, appropriate measurement, evidence of validity, and safeguards against using a broad personality impression as a proxy for performance.
Finally, organizations should track actual leadership outcomes. Promotion, status, pay, span of control, and follower admiration are not interchangeable with team performance, ethical conduct, retention, psychological safety, innovation, or decision quality. A development system becomes scientifically meaningful when its outcome definitions are explicit.
What the Evidence Does Not Yet Tell Us
Leadership science is broad, but the born-versus-made question still contains major uncertainties. Twin estimates vary by sample, outcome, age, and context. Many classic studies rely on role occupancy or self-report rather than long-term effectiveness. Training meta-analyses combine heterogeneous interventions and outcomes. Longitudinal leadership-development research remains much smaller than the cross-sectional leadership literature.
The 2024 longitudinal review found only 19 qualifying true longitudinal studies under its criteria and noted limitations in context diversity (Cotrim & Da Silva Gomes, 2024). The newer three-wave twin study improves the temporal picture for role occupancy, but it concerns Danish twins and a specific leadership phenotype (Florczak et al., 2024). Future work needs larger longitudinal datasets, better cross-cultural coverage, stronger causal designs, multi-source measurement, and clearer separation of emergence, role occupancy, behavior, and effectiveness.
The scientific answer should therefore remain construct-specific. Genetics contributes to variation in some pathways into leadership. Personality and cognitive ability predict some leadership outcomes. Experience and environment alter trajectories. Training can causally improve leadership-relevant outcomes. None of those findings licenses a universal percentage for “how much of a leader is born”.
A More Accurate Model Than “Born or Made”
A useful model has five interacting layers. First, dispositions include partly heritable personality, cognitive, temperamental, and motivational differences. Second, development includes family, education, work experience, mentoring, feedback, training, and repeated practice. Third, opportunity includes access to roles, sponsorship, networks, institutional selection, and social permission to lead. Fourth, enactment includes the behaviors actually used in a specific situation. Fifth, reception and outcomes include whether followers grant influence and whether the group achieves relevant results.
A person can be advantaged at one layer and disadvantaged at another. Strong emergence can coexist with weak judgment. High skill can coexist with low motivation to lead. Formal authority can coexist with low status. High status can coexist with no formal authority. A strong training response can coexist with limited opportunity. A difficult early environment can constrain expression of dispositions that become more visible later.
This layered model also explains why arguments about nature and nurture often talk past each other. Behavioral genetics describes variance in particular measured outcomes. Leadership development studies describe change processes. Trait meta-analyses describe prediction. Intervention studies address causal malleability more directly. These literatures answer related questions, not the same question.
Frequently Asked Questions
Are good leaders born or made?
Both inherited dispositions and development contribute, but “good leader” must be defined by an effectiveness criterion. Genetics studies most often examine role occupancy, emergence, or measured leadership tendencies, not a universal measure of good leadership. Development and training studies show that relevant capabilities and outcomes can improve.
What percentage of leadership is genetic?
There is no single percentage for leadership as a whole. Classic twin studies have reported estimates around 24% to 32% for leadership role occupancy in particular samples (Arvey et al., 2006; Arvey et al., 2007; De Neve et al., 2013). A 2024 longitudinal study found that the estimate changed with age and labor-market experience, reinforcing that heritability is population- and context-dependent (Florczak et al., 2024).
Does 30% heritability mean leadership is 30% innate?
No. Heritability is a statistic about differences among people in a population under particular conditions. It cannot be decomposed into an individual person's “genetic percentage” and “environmental percentage.” It also does not specify whether a characteristic can change.
Can leadership skills be learned?
Yes. The strongest meta-analytic training evidence shows improvements in learning, behavioral transfer, and results across hundreds of independent samples, with effectiveness varying by design and delivery (Lacerenza et al., 2017).
Can leadership training make anyone an effective leader?
Training raises the probability of improvement; it does not guarantee identical outcomes for every participant. Motivation, baseline capability, opportunity to practice, role fit, organizational support, followers, task demands, and the quality of the intervention all matter.
Are extroverts more likely to become leaders?
On average, extraversion is positively related to leadership and is especially relevant to emergence, but it is not a requirement for effective leadership (Judge et al., 2002; Ensari et al., 2011).
Is intelligence necessary for leadership?
Cognitive ability predicts leadership modestly at the meta-analytic level, but the relationship is far from deterministic. Judge and colleagues reported corrected correlations of roughly .21 to .27 depending on range-restriction correction (Judge et al., 2004). Different leadership roles also demand different combinations of cognitive, social, technical, and practical capacities.
Are leadership traits fixed for life?
No. Personality is relatively stable but measurable change occurs, and intervention research demonstrates that adult trait measures can shift (Roberts et al., 2017). Leadership development can also improve behavior and skill without requiring large personality change.
Does holding a leadership position prove leadership ability?
No. Role occupancy indicates that a person holds or has held a formal leadership position. It may reflect ability, motivation, opportunity, organizational selection, networks, status, and other factors. Effectiveness requires separate evidence about outcomes.
Is a “natural leader” a scientific category?
No. It is an everyday description. Researchers instead measure specific constructs such as traits, emergence, role occupancy, behaviors, motivation to lead, status, and effectiveness. Someone who appears naturally leader-like may combine disposition, accumulated experience, social opportunity, and practiced behavior.
Conclusion
The born-versus-made question survives because it expresses a real tension in human development: people begin from different starting points, yet they also change. Leadership research supports both observations. Genetic and personality differences help explain variation in who emerges or occupies leadership roles. Training and developmental experiences can change knowledge, behavior, transfer, and results. Environments shape which predispositions are expressed, which people receive opportunities, and which behaviors are rewarded.
The scientifically useful question is therefore not whether leadership comes from nature or nurture. It is which leadership outcome we are trying to explain, which individual differences predict it, which experiences change it, which contexts enable or suppress it, and which outcomes demonstrate that development actually worked.