The Baltic Dry Index is a daily average of prices to ship raw materials. It represents the cost paid by an end customer to have a shipping company transport raw materials across seas on the Baltic Exchange, the global marketplace for brokering shipping contracts. The Baltic Exchange is similar to the New York Merc in that it is a medium for buyers and sellers of contracts and forward agreements (futures) for delivery of dry bulk cargo. The Baltic is owned and operated by the member buyers and sellers. The exchange maintains prices on several routes for different cargoes and then publishes its own index, the BDI, as a summary of the entire dry bulk shipping market. This index can be used as an overall economic indicator as it shows where end prices are heading for items that use the raw materials that are shipped in dry bulk. The BDI is one of the purest leading indicators of economic activity.