Success and Luck: Good Fortune and the Myth of Meritocracy: Summary & Key Insights

Before we can talk meaningfully about success, we must clarify what we mean by luck. In everyday conversation, ‘luck’ is a vague concept—a sense that something beyond our control has worked in our favor. In economics, we can define it more precisely as any event that influences outcomes but lies outside a person’s deliberate effort. This could include when and where you are born, the era’s technological stage, the family that supports or hinders you, or even your genetic predispositions.

People often confuse luck with skill because the world rarely provides clean experiments. Two individuals can start with equal intelligence and motivation, yet one happens to meet the right collaborator, receive the right advice, or be present when an opportunity opens. That person’s path diverges, and over time, the difference compounds. To see this vividly, consider the story of Silicon Valley entrepreneurs. Many of them are undoubtedly gifted, but timing and place played decisive roles. Had they been born just ten years earlier or later, in a different neighborhood or without access to certain networks, many would have remained obscure engineers rather than cultural icons.

Recognizing luck’s power doesn’t deny talent—it contextualizes it. Even small advantages at the start, when amplified by the mechanisms of cumulative advantage, can lead to vast outcome disparities. In competition for scarce rewards, the difference between first and second place can be infinitesimal, yet the rewards can differ by millions. This is a mathematical truth of modern markets: when outcomes hinge on small initial differences, chance often dictates the winner. Understanding this truth is the foundation for an honest conversation about fairness.

Several years ago, I experienced an event that seared the reality of chance into my mind. While jogging in Ithaca, I was nearly struck by a car that lost control on an icy road. A few inches, half a second—it was that close. Had I been where I was a moment earlier, I would not be here to write these words. That near-miss led to months of reflection: how easily the trajectory of my career, my family, my research—all of it—could have vanished.

The realization was uncomfortable. As a social scientist, I had always emphasized rational causation, the predictable patterns in human behavior. But this brush with disaster forced me to confront what we all know intuitively yet suppress—the randomness in life. For every person celebrated for perseverance, there are countless others who tried with equal vigor but encountered worse luck: an illness, a setback, a family responsibility, or a market collapse. Their stories vanish into silence, and we mistakenly attribute the silence to a lack of effort rather than misfortune. This personal moment reframed not just my outlook but my entire research trajectory. From then on, my work has aimed to bring luck out of the shadows, to make it visible in the story of human success.