"The traditional model is known as the "push" model, with suppliers and vendors on top pushing their products or services through the supply chain to the eventual consumer. Costs are accumulated through the chain with the end consumer typically incurring much of the cost."
(The Canada/Manitoba Business Service Centre,
Business-to-Business: E-Commerce Basics, visited 2010-23-08)
Producer-driven commodity chains are those in which large, usually transnational, manufacturers play the central roles in coordinating production networks. This is characteristic of capital and technology intensive industries such as those dealing in automobiles, aircraft, computers, semiconductors, and heavy machinery.