Examine a perfectly competitive firm that you have recently purchased a product from, focusing specifically on how the firm operates relative to the characteristics of the market

I recently purchased a book from amazon and in many ways amazon marketplace can be considered as perfectly competitive , as the prices of all the sellers are equal . Under one shade there are numerous distinct type of goods up for sale. No single seller or buyer can influence the prices , and there are large no. Of buyers and sellers Also there was no price discrimination among different buyers everyone had to pay the same price . And there are no entry barriers as such, any new seller could list himself up at the amazon marketplace though he had to charge the same price as others .