丰 or esTers Foreign Debt accumulation and Debt-Servicing Ratio I ag Foreign lenders tend to be more concerned about a country's prospective earnings ability and hence use the debt/export ratio 偿债率,= 外债偿还额+利息 商品劳务出口收汇额, i本年度Foreign Debt Accumulation and Debt-Servicing Ratio I  Foreign lenders tend to be more concerned about a country’s prospective earnings ability and hence use the debt/export ratio. i = 本年度