ACCOUNTING THEORY tries to describe the role of accounting and is composed of four types of accounting theory: classical inductive theories, income theories, decision usefulness theories, and information economics / agency theories: a. Classical inductive theories are attempts to find the principles on which current accounting processes are based; b. Income theories try to identify the real profit of an organization; c. Decision usefulness theories attempt to describe accounting as a process of providing the relevant information to the relevant decision makers; and, d. The information economics / agency theories of accounting see accounting information as a good to be traded between rational agents each acting in their own self-interest.
STEPPED COSTS is a cost that increases by a reasonably constant sum each time volume or activity increases by a predictable, constant, multiple. The smallest step costs are variable costs, which increase by a discrete amount each time output or activity increases by one unit. Larger steps will consist of what are, effectively, fixed costs over a particular range of output. Some costs increase, or decrease, in significant steps when output or activity passes certain limits. For instance, if a bus company regularly has more passengers on a route than can be carried by a single vehicle it may be necessary to use an additional bus. Running an additional bus will double the cost of operating on that route. Similarly, a manufacturing firm may have a policy of employing one supervisor for every ten production workers. In which case the firm will need one supervisor for 1-10 employees, two supervisors for 11-20 employees, and so on. So, if demand rises to the point where 21 production employees are required an extra supervisor must be employed. Costs that behave in this way are called stepped costs.
DDA, among others, can mean: Disability Discrimination Act (1995, UK), Dividend Disbursing Agent (finance), Demand Deposit Account, Direct Deposit Advance (Wells Fargo), Direct Deposit Advice, Deposit Demand Account, or Design Development Activity.
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