Are organizations of people with a similar policy goal, or goals, who enter the political process at one or more points, in one or more policy arenas, to try to achieve their goals.

The purchasing agent for a company that assembles and sells air-conditioning equipment in a latin american country noted that the cost of compressors has increased significantly each time they have been reordered. the company uses an eoq model to determine order size. what are the implications of this price escalation with respect to order size? what factors other than price must be taken into consideration?