Historically, craftsmen tended to concentrate in urban centers and formed guilds. The skill required by their professions is and the need to be permanently involved in the exchange of goods also demanded a generally higher level of education, and craftsmen were usually in a more privileged position than the peasantry in societal hierarchy.
The households of craftsmen were not as self-sufficient as those of people engaged in agricultural work and therefore had to rely on the exchange of goods.
