<Dd> Agent: An intermediary who is authorised to act for a principal in order to facilitate exchange . Unlike merchant wholesalers and retailers, agents do not take title to goods, but simply put buyers and sellers together . Agents are typically paid via commissions by the principal . For example, travel agents are paid a commission of around 15% for each booking made with an airline or hotel operator . </Dd> <Dl> <Dd> Jobber: A jobber is a special type of wholesaler, typically one who operates on a small scale and sells only to retailers or institutions . For example, rack jobbers are small independent wholesalers who operate from a truck, supplying convenience stores with snack foods and drinks on a regular basis . </Dd> </Dl> <Dd> Jobber: A jobber is a special type of wholesaler, typically one who operates on a small scale and sells only to retailers or institutions . For example, rack jobbers are small independent wholesalers who operate from a truck, supplying convenience stores with snack foods and drinks on a regular basis . </Dd> <P> A firm can design any number of channels they require to reach customers efficiently and effectively . Channels can be distinguished by the number of intermediaries between producer and consumer . If there are no intermediaries then this is known as a zero - level distribution system or direct marketing . A level one (sometimes called one - tier) channel has a single intermediary . A level two (alternatively a two - tier) channel has two intermediaries, and so on . This flow is typically represented as being manufacturer to retailer to consumer, but may involve other types of intermediaries . In practice, distribution systems for perishable goods tend to be shorter - direct or single intermediary, because of the need to reduce the time a product spends in transit or in storage . In other cases, distribution systems can become quite complex involving many levels and different types of intermediaries . </P>

How do wholesalers contribute to the distribution of goods and services