Cumulative Advantage and SEM

I recently read an article in the New York Times that asked the question, “Is Justin Timberlake a Product of Cumulative Advantage?” The author, Duncan Watts, states that cumulative advantage occurs “if one object happens to be slightly more popular than another at just the right point, it will tend to become more popular still.” He says that if in fact people do not make decisions independently, but are rather socially influenced, then predicting hits is impossible no matter how much you know about individual tastes.
Duncan writes, “As a result, even tiny, random fluctuations can blow up, generating potentially enormous long-run differences among even indistinguishable competitors.”

