What are the 4 principal channels of distribution?

The four principal channels of distribution are direct selling, wholesalers, retailers, and agents or brokers. Direct selling involves selling products directly to consumers, while wholesalers purchase in bulk to sell to retailers. Retailers sell products directly to end consumers, and agents or brokers facilitate transactions between buyers and sellers, often taking a commission. Each channel serves to efficiently move products from producers to consumers, adapting to different market needs.