6.3 Centralised versus decentralised control
We have already seen the potential of centralisation in reducing the system wide cost. Centralised decision making can reduce the aggregate level of inventory in the supply chain. The net affect is reduction in cost while the level of service is maintained. The physical centralisation of inventory and the implementation of risk pooling techniques will be feasible, apparently, when the inventories in question are owned by a single owner. But the benefits of centralised decision making, including those related with the required level of inventories at different business units within the supply chain, need not be constrained by the concept of common ownership. It is possible to bring independent business units under the umbrella of a centralised control mechanism so long as each party appreciates the benefits achievable and if a mechanism is in place to share this benefit among the parties in an equitable way. The first step towards centralised decision making is sharing of real time information which enables firms to upgrade their forecasts and to make better decisions. We have already studied the concept of CPFR, which allows firms to share information and plan for replenishment in a way which benefits all firms in this collaborative network.
When we are concerned with distribution, we will need to look at the way centralised information and control can help firms in reducing costs and in improving service levels. As stated often, the concept of benefit has to be considered with respect to the supply chain as a whole and this must address the question of system wide cost and service level.