Goods sold in perfectly competitive markets are generally

Goods sold in perfectly competitive markets are generally homogenous. This means that the products are of the same quality, have the same features and characteristics, and are interchangeable with each other. In a perfectly competitive market, there are many buyers and sellers, and no single buyer or seller has any significant market power to influence the price of the good. As a result, the products are sold at the market price, which is determined by supply and demand, and all buyers and sellers receive the same price for the product. This is why the goods must be homogenous - if they were not, then some sellers could charge a higher price for a higher quality product, and buyers would have an incentive to only buy the higher quality product, which would create market power and reduce competitiveness.