What is preferential attachment?

It’s the tendency for those who already have more to gain more — "the rich get richer." New connections, attention, or resources flow disproportionately to whoever already leads, widening the gap over time.

What is the Matthew effect?

It’s another name for preferential attachment, from the Biblical line "to those who have, more will be given." It describes how initial advantage compounds into ever-greater advantage across science, wealth, and fame.

What is an example of preferential attachment?

Popular websites attract more links because they’re already popular, raising their rank and bringing still more links and visitors. The same self-reinforcing advantage concentrates wealth, citations, and fame in a few hands.

Preferential attachment

Also called the Matthew effect · Network science & sociology

Preferential attachment is the tendency for those who already have more to gain still more — "the rich get richer." In networks and society, new connections, attention, or resources flow disproportionately to whoever already has the most, widening the gap over time.

How it works

Wherever advantage is self-reinforcing — links to popular sites, citations to famous papers, wealth to the wealthy — expect a widening gap, not convergence. Early leads compound because success attracts further success, producing extreme, unequal distributions.

How to use it

Explaining why a few players dominate (websites, cities, celebrities, fortunes) while most stay small.
Recognising the outsized value of an early lead in a self-reinforcing system.
Understanding why inequality often grows on its own without any deliberate unfairness.

Worked example

A popular website gets linked to more because it’s already popular, which raises its ranking, which brings more visitors and more links. The early leader’s advantage compounds, while equally good latecomers stay obscure — the rich get richer.

Where it fails

It’s a strong tendency, not destiny — disruption, novelty, and changing tastes can topple the entrenched (preferential attachment didn’t save Myspace). Treating dominance as permanent ignores the forces that occasionally reset the hierarchy.

The deeper point

It explains why so many distributions are extreme rather than bell-shaped: a tiny early advantage, compounded by success-attracting-success, produces a world of a few giants and a long tail of also-rans — usually without anyone designing the inequality. The lead, not the merit, is what compounds.

Frequently asked

What is preferential attachment?: It’s the tendency for those who already have more to gain more — "the rich get richer." New connections, attention, or resources flow disproportionately to whoever already leads, widening the gap over time.
What is the Matthew effect?: It’s another name for preferential attachment, from the Biblical line "to those who have, more will be given." It describes how initial advantage compounds into ever-greater advantage across science, wealth, and fame.
What is an example of preferential attachment?: Popular websites attract more links because they’re already popular, raising their rank and bringing still more links and visitors. The same self-reinforcing advantage concentrates wealth, citations, and fame in a few hands.

Compounding Network effects The Lindy effect

Editorial synthesis © ReadGlobe 2026, drawing on the mental-models tradition (Charlie Munger, Farnam Street) and the primary sources for each model. · Last reviewed 2026-05-29.