However, borrowing creates a claim on future budgets since debt has to be serviced and repaid. Moreover, external debt carries additional risks since a depreciation of the exchange rate can increase the burden of servicing it. In deciding whether deficit financing can contribute to the sustainable realization of rights over time, it is critical to consider whether the government is using the debt in ways that support the fulfilment of rights without compromising future streams of revenue—which would violate the principle of maximum available resources if future generations are considered.