Final answer:
A rolling budget is a budget that is prepared for several periods in the future and revised multiple times before the budget period.
Step-by-step explanation:
A budget that is prepared for several periods in the future, then revised several times prior to the budget period is called a rolling budget. It is a dynamic budgeting process that continuously updates and adjusts the budget based on changing circumstances and new information. A rolling budget allows for better flexibility and responsiveness to changes in the business environment.