A national health organization has developed a long-term economic strategy for program sustainability. What term best describes this strategy?

The term that best describes a long-term economic strategy for program sustainability is a financial plan. A financial plan outlines how resources will be allocated and managed over time to ensure that the program can continue to operate effectively in the future. It includes projected income, expenses, and funding sources, which are vital for ensuring sustainability.

A financial plan is distinct from a budget, which typically covers a shorter time frame and focuses on day-to-day operations. While a budget is an essential component of financial management, it does not encompass the broader strategy for sustainability that a financial plan does.

Additionally, a grant proposal is a request for funding that usually addresses a specific project or program but not necessarily the long-term sustainability aspect. A strategic plan, on the other hand, typically focuses on the broader goals and direction of an organization rather than specifically detailing the economic considerations of sustaining a program. Therefore, the financial plan best captures the essence of a long-term economic strategy aimed at ensuring the program's ongoing viability.