How do currency speculators harm for Less Developed Countries?

Private capital inflows can be short term and speculative. Speculators shift funds in a Less Developed Countries at low exchange rates, notice the currency appreciate and in that case sell the currency primary at a profit. The resultant currency swings are very much destabilising for balance of payments (BoP) domestic prices.

Private capital inflows and subsequent flight both are a factor into current economic disruption experienced through Argentina.