Abstract
This work examines budget allocation decisions in public health within the framework of the Global Fund's financing for HIV, tuberculosis, and malaria programs. We first develop a model for donors to allocate budgets between public and private distribution channels to optimize treatment outcomes and propose a modified greedy heuristic. We then present a model for grant recipients to allocate budgets among various disease-specific health products and propose an index heuristic. Numerical evaluations of these heuristics demonstrate their significant impact on system outcomes and superior performance compared to benchmark policies.