Which type of bond funds projects for specific populations that repay the debt through user fees?

Revenue bonds are designed to finance projects that generate income through user fees, making them a suitable choice for specific populations that will ultimately repay the debt. These projects often include facilities such as toll roads, bridges, hospitals, or public utilities, where the revenue generated from users is earmarked to cover the debt service on the bonds.

The nature of revenue bonds means that they are not backed by the full faith and credit of the issuing municipality. Instead, they rely on the cash flow generated from the specific enterprise or project. This means that the financial risk is tied directly to the performance and success of the project being funded, rather than the broader tax base or general revenues of the municipality.

In contrast, general obligation bonds are secured by the issuing government's taxing power and do not rely on specific revenue streams. Municipal bonds can encompass both general obligation bonds and revenue bonds, making them a broader category. Corporate bonds, meanwhile, are issued by private companies and are not related to the public financing structures intended for specific population projects in the context of the question.