Policy  A policy is a deliberate system of principles to guide decisions and achieve rational outcomes. A policy is a statement of intent, and is implemented as a procedure or protocol. Policies are generally adopted by a governance body within an organization. Policies can assist in both "subjective" and "objective" decision making. Policies to assist in subjective decision making usually assist senior management with decisions that must be based on the relative merits of a number of factors, and as a result are often hard to test objectively, e.g. work-life balance policy. In contrast policies to assist in objective decision making are usually operational in nature and can be objectively tested, e.g. password policy. The term may apply to government, private sector organizations and groups, as well as individuals. Presidential executive orders, corporate privacy policies, and parliamentary rules of order are all examples of policy. Policy differs from rules or law. While law can compel or prohibit behaviors (e.g. a law requiring the payment of taxes on income), policy merely guides actions toward those that are most likely to achieve a desired outcome. Policy or policy study may also refer to the process of making important organizational decisions, including the identification of different alternatives such as programs or spending priorities, and choosing among them on the basis of the impact they will have. Policies can be understood as political, managerial, financial, and administrative mechanisms arranged to reach explicit goals. In public corporate finance, a critical accounting policy is a policy for a firm/company or an industry that is considered to have a notably high subjective element, and that has a material impact on the financial statements. The intended effects of a policy vary widely according to the organization and the context in which they are made. Broadly, policies are typically instituted to avoid some negative effect that has been noticed in the  organization, or to seek some positive benefit. Corporate purchasing policies provide an example of how organizations attempt to avoid negative effects. Many large companies have policies that all purchases above a certain value must be performed through a purchasing process. By requiring this standard purchasing process through policy, the organization can limit waste and standardize the way purchasing is done. The State of California provides an example of benefit-seeking policy. In recent years, the numbers of hybrid cars in California has increased dramatically, in part because of policy changes in Federal law that provided USD $1,500 in tax credits (since phased out) as well as the use of high-occupancy vehicle lanes to hybrid owners (no loew hybrid vehicles).