Are Leaders Born or Made? What the Research Says

"Are leaders born or made" is one of the oldest debates in the leadership literature, and most of the popular answers to it are either rhetorical posturing (great leaders are made through their choices!) or under-researched assertion (charisma is genetic!). The actual research, accumulated over four decades of twin studies and behavioural genetics work, lands somewhere more interesting and more useful than either position — and the "totally new" framing in the original article title turns out to point at a real finding, though not quite the one the framing suggests.

The short version: roughly 24–32% of the variance in whether someone ends up in a leadership role is heritable, and the remaining 68–76% is environmental — experience, education, opportunity, deliberate practice, and the situational factors that put one person in a leadership position rather than another. That's the headline range from the largest twin studies on the question. The more interesting findings, though, are about what specifically is heritable and what isn't, and how to think about that for your own development.

This article goes through the research, what it actually says, and what a working leader (or aspiring one) can reasonably do with it. The conclusion isn't quite "born" and isn't quite "made" — and the genuine new wrinkle is about a specific genetic marker and what it does and doesn't mean for your career.

1. What the twin studies actually show

The methodology: compare identical twins (100% shared DNA) with fraternal twins (50% shared DNA). If identical twins are more similar than fraternal twins on a given trait, the difference is attributable to genetic factors. The technique has been refined over decades and applied to almost every personality and behavioural trait researchers have measured.

For "leadership role occupancy" — defined as whether someone holds a supervisory or managerial position over the course of their career — two major studies anchor the estimates. Arvey, Zhang, Avolio & Krueger, writing in the Journal of Applied Psychology (2007), found heritability of approximately 30% in male twin samples and 32% in female twin samples — two studies examining the same construct with similar results. A separate large-sample twin study by De Neve, Mikhaylov, Dawes, Christakis & Fowler, published in The Leadership Quarterly (2013), using data from the National Longitudinal Study of Adolescent Health, found a somewhat lower estimate of approximately 24% (95% confidence interval: 6–46%). Both sets of findings have been replicated across follow-up studies.

One important nuance: these estimates are for whether someone occupies a leadership role. They're not measures of whether people in those roles lead effectively. Those are different questions, and the second has received less rigorous twin-study treatment.

2. A recent longitudinal finding adds important texture

A three-wave longitudinal twin study tracking 1,079 Danish twin pairs over ten years (Florczak et al., The Leadership Quarterly, 2024) found that genetic influences on leadership role occupancy are not static across a career. In early adulthood, equal access to education constrains the expression of genetic predisposition — everyone has roughly equal access to the developmental environments that could lead to leadership. As individuals age and labour market sorting occurs, heritability strengthens. The genetic contribution isn't to some fixed destiny from birth; it's to tendencies that express more or less depending on what environments people find themselves in.

The practical implication: the 24–32% heritability estimate is an average across careers, not a ceiling. In environments that actively develop leadership (strong mentorship, meaningful feedback, real authority early), the environmental contribution can expand well beyond the average. Environments that don't develop leadership shrink the opportunity for the environmental contribution to matter.

3. The specific genetic marker that does something measurable

The most surprising finding in the recent research — and the one that probably warranted the "totally new" framing in the original article — is that researchers have identified a specific single-nucleotide polymorphism (SNP), called rs4950, located on the CHRNB3 gene (a neuronal acetylcholine receptor gene), that is statistically associated with the likelihood of occupying supervisory leadership roles. De Neve, Mikhaylov, Dawes, Christakis & Fowler (The Leadership Quarterly, 2013), analysing two independent U.S. samples (Add Health and the Framingham Heart Study), found that each A allele of rs4950 raised the odds of occupying a supervisory position by approximately 50% relative to the family average.

The effect size is modest. People with one variant of rs4950 are statistically more likely to end up in supervisory roles than people with the other variant, but the difference is meaningful only at population scale, not at individual scale. Having the "leadership variant" doesn't make you a leader; not having it doesn't disqualify you. It just shifts the base rate slightly. For an individual considering their own career trajectory, the SNP is essentially irrelevant; for a researcher studying populations, it's a real and reproducible finding.

4. What the environmental component actually contains

The 68–76% environmental figure gets quoted as if it means anyone can learn to lead. That's an oversimplification. The environmental contribution includes a lot of things that aren't easily changeable: socioeconomic background, parental modelling, educational opportunity, early-career experiences, the industries available to you. Some is deliberate adult development; some is luck of the draw. The frame "you can become a great leader if you just decide to" is closer to fiction than to research. The accurate framing: your inherited tendencies set a starting point and your choices and circumstances determine how far from that point you end up.

5. The traits that are most heritable (and least changeable)

The Big Five personality traits — openness, conscientiousness, extraversion, agreeableness, neuroticism — show heritability estimates of 40–60% and are relatively stable across adulthood. The leadership-relevant traits are extraversion (correlated with leadership emergence in groups, r = .31 in the largest meta-analysis — Judge, Bono, Ilies & Gerhardt, Journal of Applied Psychology, 2002), conscientiousness (effective in stable environments), and emotional stability (effective under high-stress conditions). A low starting point on these doesn't preclude leadership — it just means the style that fits may not be the extroverted, charismatic version that the listicles celebrate.

6. The traits that are most developable (and most leverageable)

The good news from the research: the skills that matter most for actual leadership effectiveness — clear communication, decision quality under uncertainty, ability to give honest feedback, ability to delegate, self-awareness about your own patterns — have weaker heritability components and respond strongly to deliberate practice, coaching and structured feedback.

This is why the executive-coaching industry exists and why it produces measurable results despite working with adults whose personalities are largely set. The technique-level leadership skills are the leverage point; the personality-trait substrate is the starting condition. An introvert who develops excellent written communication and deliberate delegation skills will out-lead an extrovert who coasts on natural sociability and never builds the technique layer.

On charisma specifically: randomised experiments by Antonakis, Fenley & Liechti (Academy of Management Learning & Education, 2011) found that training in twelve specific Charismatic Leadership Tactics — including metaphors, three-part lists, rhetorical questions, and animated nonverbal delivery — produced leadership effectiveness ratings approximately 60% higher than untrained controls. Charisma is not a birth trait; it's a learnable communication discipline.

7. The "great person" theory hasn't survived contact with the data

For about a hundred years, the dominant theory of leadership held that leaders were a specific type of person — born with the right traits, recognisable across contexts. The research has not been kind to this. The same person who leads well in one context may be ineffective in another. The personality traits that produce a successful founder in the seed stage may undermine effectiveness at Series C. The contemporary view is the contingency model: leadership effectiveness is the product of person-situation fit, not pure trait. "Born to be a leader" isn't a coherent claim across contexts.

8. What this means for your own development

Three practical conclusions, in order of leverage. First: figure out the type of situation you're well-suited to lead in — your dispositions plus accumulated experience point at certain contexts more than others. Second: invest in the technique-level skills (communication, decision-making, feedback) that are most developable regardless of starting personality. Third: stop spending energy on leadership stereotypes that don't fit you. The introvert trying to perform extroverted charisma will lose to the introvert who builds a quiet, deliberate, written-communication-heavy style that actually fits them.

9. The genuinely new wrinkle

What's new in the last decade is the granularity. Research has moved from broad "is leadership inherited" questions to mechanism-level findings: which personality components have which heritability, which neural systems are involved (the rs4950/CHRNB3 finding), and how the environmental contribution distributes across childhood, education, and deliberate development. Florczak et al. (The Leadership Quarterly, 2024) in particular shows that genetic contribution strengthens over time — a finding that changes how we should think about when to invest most heavily in leadership development. The headline answer remains roughly "24–32% born, the rest made," but the texture underneath is richer and more useful than the old binary.

The honest conclusion

If you're someone who has assumed you "aren't a natural leader" and have used that as a reason not to develop the technique-level skills, the research is fairly clear: that assumption is leaving 68–76% of the variance on the table. The technique-level skills are learnable and have outsized impact on effectiveness regardless of starting personality.

If you're someone who has assumed you "are a natural leader" because you've been told it your whole life, the research is also clear: the natural disposition is necessary but not sufficient. The technique-level skills still matter, and the situations you're well-suited to are specific. The leader who coasts on inherited charisma without developing the operating disciplines tops out earlier than the technique-developed leader who didn't have the initial advantage.

For the foundational reading on the developable side of leadership, the best leadership books roundup is the canonical stack. The 38 motivational quotes on leadership distils much of the same wisdom into shorter form. For the personality-side reading on what's actually inherited versus developable, self-help books recommended by top psychologists covers the psychological-development ground.