In the market, there are two brands of batteries of the same model  The price of the battery of brand A is 10% lower than that of brand B, and the former sells better than the latter  But the testing shows that the service life of the battery of brand B is 15% longer than that of brand A, but brand A sells better  The reason is that consumers do not know the difference in service life between the two batteries  In this way, in a competitive market, inefficient products that should have been produced less are produced more
This shows that incomplete information can lead to market failure
The anti-unfair competition law and consumer rights protection law should be improved.