>"She discovered that she can use bitcoin to top up people’s phones on bitrefill.com, and she can charge for this. For every 100 dollars she receives in bitcoin

>"She discovered that she can use bitcoin to top up people’s phones on bitrefill.com, and she can charge for this. For every 100 dollars she receives in bitcoin, she gets 120 CUC in cash from her friends whose phones she tops up. Ira is quite pleased that she has found to a way to arbitrage the currency exchange. If she got paid via Western Union, she’d lose 15% of what the agency pays her. This way, she makes 20%." Amazing, because modern economic theory states that arbitrages should not exist, and if they do (for whatever quirky reason), then they will disappear just as quickly as they appeared...