Why doesn't the price of a one-dollar lighter increase for 20 years? What goods have not increased in price for decades?

The reason why the price of one-dollar lighters has not increased for 20 years may be because the production cost has decreased and the market competition has intensified. With the progress of technology and the improvement of production efficiency, the production cost of lighters is gradually decreasing, and the market competition is becoming more and more fierce. In order to maintain market share, manufacturers may choose to keep prices low to attract more consumers.

In addition to lighters, there are some goods that have not increased in price for decades, such as:

1. Hongqi Bicycle: Hongqi Bicycle is one of the representative brands of bicycles in China. It has been produced since the 1960s and has a history of several decades. Although there are many bicycle brands on the market now, the price of Hongqi brand bicycles has remained stable.

2. Triangular wok: Triangular wok is a traditional kitchen utensil in China, which has always been loved by consumers because of its durability and easy cleaning. Although there are many brands of kitchen utensils on the market now, the price of triangular iron pots has remained stable.

3. sofa cover: sofa cover is a household item, which can protect the sofa from pollution and wear. Because of its low material cost and simple production process, the price has remained stable.

Generally speaking, the stability of commodity prices is related to production costs, market competition, consumer demand and other factors. If production costs are reduced, market competition is intensified or consumer demand is not high, commodity prices may remain stable or decline.