In the past, they were often conducted primarily by external consultants with limited familiarity with the country they were working in and who did not necessarily have a full awareness of the feasibility of different interventions. Moreover, they may not have had an incentive to follow up to ensure a prioritised integration of these constraints. As a result, effective solutions and a prioritised ranking of constraints to assess the feasibility of addressing these within the national political economy were frequently absent. Loans can be flexible to specific project needs and can provide a larger volume of funding, but they are more complex and can also lead to a potentially unsustainable debt burden.