People constantly evaluate themselves and others in domains like attractiveness, wealth, intelligence, and success. According to some studies, around 12 percent of our thoughts involve comparisons of some kind.

Social comparison theory is the idea that individuals determine their own social and personal worth based on how they stack up against others. The theory was developed in 1954 by psychologist Leon Festinger.

Later research has shown that people who regularly compare themselves to others may find motivation to improve, but may also experience feelings of deep dissatisfaction, guilt, or remorse, and engage in destructive behaviors like lying or disordered eating.

What Are the Benefits of Comparison?

When individuals compare themselves to others as a way of measuring their personal development or to motivate themselves to improve and, in the process, develop a more positive self-image, comparisons can be beneficial. It takes discipline, however, to avoid the pitfalls of negative comparison. In large part, how we react to comparisons depends on who we compare ourselves to: When we just want to feel better about ourselves, we tend to engage in comparisons to people worse off than we are, although this can become an unhealthy habit. When we want to improve, though, we may compare ourselves to people roughly similar to us but higher-achieving in one trait or another.

What Are the Dangers of Comparison?

Theodore Roosevelt called comparison “the thief of joy,” and he may have been right. Social comparison can motivate people to improve, but it can also promote judgmental, biased, and overly competitive or superior attitudes. Most people have the social skills and impulse control to keep their standards for social comparison to themselves, and not to act on any envy or resentment spurred by comparison-making. But their true feelings may manifest in other ways.

Comparison and Bias

Many people fall into the trap of positional bias, comparing "up" more often than "down" relative to their own standing. A fascination with celebrity culture and the prevalence of carefully manicured social media feeds only exacerbate the effect by exposing people to an endless stream of others’ seemingly perfect images, homes, jobs, skills, and families.

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