Unlike with air and water pollution rules, which do not factor cost into the equation, the agency is required to show the proposed action is cost-effective given the public health risk posed under each specific scenario.

The major cardiology societies, for instance, are also now starting to factor cost into their evaluation of drugs.

For most entrepreneurs, especially those of new or small businesses, the prospect of SEO is burdened by one major factor: cost.

Students may also want to factor cost into their choice. 

In recent years, consumers have increasingly been encouraged to factor cost into their medical decisions — by, for example, avoiding unnecessary tests, buying generic drugs and reducing visits to the emergency room.