Sometimes a firm sells the same product under two brand names. For example, the Chevy Tahoe and

Question:

Sometimes a firm sells the same product under two brand names. For example, the Chevy Tahoe and the GMC Yukon are virtually twins (although the Yukon sells for $490 more than the Tahoe). Give an asymmetric information explanation as to why the firm might use pairs of brand names and why one product might sell for more than the other?