We study a sequential resource allocation problem balancing fairness and efficiency for nonprofit operations. (Un)fairness is measured by the expected maximum demand shortfall among all communities, and (in)efficiency is measured by the expected remaining resources after allocation. We prove...

We study how the procurement process may help a buyer reduce purchasing costs under a dual-sourcing setting. First, we analyze the equilibrium outcomes when the buyer simultaneously or sequentially bilaterally negotiates with the suppliers. We establish coordination results and characterize the...