There is no doubt that long-tail products are products with low demand or poor sales. In an era when information does not circulate, they are often products that have been gathering dust.

The concept of "Long Tail" was proposed by Chris Anderson, editor-in-chief of the American "Wired" magazine in 2004.

Anderson used several real events to tell us directly This outlines the long tail phenomenon: the songs ranked after 100,000 downloads in the online music store Rhapsody cannot be found in any of the most professional record stores, and the number of downloads per month is only a few or dozens of times. Add up However, it accounts for 15% of all downloads; the online DVD rental store Netflix accounts for the bottom 21% of the disc sales, which cannot be found in any offline disc store. Each of these "extra" unpopular products sells for less. It's pitiful, but because of the huge number of varieties, they can add up to a lot of sales.

The long tail theory vividly and vividly reflects our economy and culture, and is emerging from it. The basic principle is that as long as the storage and circulation channels are large enough, demand will not be strong. Or the market share occupied by products with poor sales can be comparable to, or even worse than, the market share occupied by a few hot-selling products.