The protruding part in the middle of the normal curve is called head, and the relatively flat part on both sides is called tail. Most of people's needs will be concentrated in the head part, and the needs distributed in the tail part are personalized, scattered and small. But this differentiated, small amount of demand creates a long tail on the demand curve. The so-called long tail effect means that the sum of all the markets distributed in the tail will form a market larger than the head market. The emphasis on individuation and small profit big market is to make a small amount of money for each person, but to make a lot of money.
According to the above definition, which of the following fits the long tail?
With the rise of online book sales, Zhang changed his physical bookstore into a book bar and stopped selling books. After a while, he found that the daily sales of coffee and refreshments were higher than the original book sales