Cost externalizing is a socioeconomic term describing how a business maximizes its profits by off-loading indirect costs and forcing negative effects to a third party.
Fundamentally, cost externalization occurs when a company transfers some of its moral responsibilities as costs to the community directly or as degradation to the environment. For example, railroads and airlines transfer the cost of fuel, noise, and terminal infrastructure to the community. Airlines and auto manufacturers transfer the cost of degraded air quality to the community and the environment. By externalizing to the community or the environment, many true costs become lost in analysis because the true cost is non-quantifiable and neither the community nor the environment have effective advocates to recoup the damages. A major modern theme in the relationship of business to society is the society's ability (or inability) to resist this kind of externalization. In its extreme, society collapses as business realizes its profits.
Cost externalizing is one of the steps a company may take to "shape up" or reduce overhead by down sizing a cost center or an unprofitable department.
An example of cost externalizing would be using a global courier service (such as FedEx and UPS) to do all or most of the shipping and logistics work for the company. For a business to take on the responsibilities of worldwide shipping by itself would be too costly. It would be far more sensible to let a third party who specialize in shipping to take care of the task and pay them for it.
Cost externalizing in no way should be considered a quick fix. Simply forcing suppliers and service providers to take on more responsibilities and cost is not a healthy externalization of cost. Careful operational forecasting must take place before taking steps towards cost externalization. Otherwise, there is no way to ascertain if cost externalizing would actually lower the operational cost of the company.
To externalize cost, budgeting must also take place. Because the company will be paying out to a third party, the cost would be more clear than when the process took place in-house. This would in turn give a chance for the suppliers and service providers to compete for business and may further reduce cost. Yet in some cases, the reduction in cost may lead to reduction in quality. Because quality is not quantified easily, it may be difficult to measure and compare - especially if the quality for all parties begin to fall, business managers may fail to notice the change in quality. This is one kind of control that a business loses when externalizing cost.