What is Push-pull Strategy?

Legal Definition
The business terms push and pull originated in logistics and supply chain management, but are also widely used in marketing, and is also a term widely used in the hotel distribution business. Wal-Mart is an example of a company that uses the push vs. pull strategy. A push–pull system in business describes the movement of a product or information between two subjects. On markets the consumers usually "pull" the goods or information they demand for their needs, while the offerers or suppliers "push" them toward the consumers. In logistics chains or supply chains the stages are operating normally both in push- and pull-manner. Push production is based on forecast demand and pull production is based on actual or consumed demand. The interface between these stages is called the push–pull boundary or decoupling point.
-- Wikipedia
Legal Definition
The method by which a product leaves a company and is then sold to a customer. The client will buy or pull the product and the business provides the push that will get the product in the hands of the client.