Lenders-influx of capital, lending too quickly without thought, loans rather than grants, interests rates low but then steadily rise, loans to pay off old loans, austerity measures enforced which leads to economic loss.Borrowers-irresponsible/inappropriate borrowing, excessive spending, corruption, poor governance, hidden borrowing (Greece), odious debt.Other-global recessions, inflation, interest rates, commodity price fluctuations, natural disasters, historical, over reliance.