Why is debt management difficult in Less Developed Countries?

One of the biggest challenges facing Less Developed Countries debt management is making sure $ interest payments can be met, which:

• Worsening ToT for Less Developed Countries dependent onto exports of agricultural products and commodities to earn foreign currency implies that they have to trade rising volumes of to earn similar amount of $.

• Increasing the supply of the supply of agricultural goods and raw materials implies prices fall steeply and export revenues fall since world demand for primary products into inelastic.