ZERO BASED BUDGET is where the expenses or costs of the prior year are not taken into consideration when establishing expense or budgetary levels looking forward. Each expense category starts from zero. All expenses or cost levels within the budget must be justified or re-justified as being necessary; thus "zero-base".
EXPENSE is the amount of assets or services used during a period.
CONTRACT LAW is that body of law which regulates the enforcement of contracts. Contract law has its origins thousands of years ago as the early civilizations began to trade with each other, a legal system was created to support and to facilitate that trade. The English and French developed similar contract law systems, both referring extensively to old Roman contract law principles such as consensus ad idem or caveat emptor. There are some minor differences on points of detail such as the English law requirement that every contract contain consideration. More and more states are changing their laws to eliminate consideration as a prerequisite to a valid contract thus contributing to the uniformity of law. Contract law is the basis of all commercial dealings from buying a bus ticket to trading on the stock market.
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