gaap for non profit organizations ECB President Mario draghi said at a press conference following the central bank's board meeting that important changes had taken place in the resumption of negotiations. In economic terms, the benefits of holding any two currencies should be equal in the equilibrium of the foreign exchange market, which is: Ri=Rj (interest rate parity). Here, R stands for yield, and I and j represent currencies of different countries. If the benefits of holding two currencies are unequal, you will have A arbitrage: buy A kind of foreign exchange and sell B foreign exchange. Following the "mad" foreign policy, for example, Mr Trump could go to war with north Korea or Iran. Or he could publish more inflammatory tweets about Islam's wickedness, which would allow individuals to be disrupted and marginalised into the arms of the islamic state (Isis) or other extremist groups. That would increase the likelihood of attacks on Isis, such as the "lone Wolf" in the United States, boasting or driving trucks in its own pedestrian area. There are a dozen people, and if not hundreds of people, the slain trump can wrap himself in the flag and say, "I told you so." If things get bad, trump and his generals can declare a state of emergency, suspend civil liberties and transform the United States into a truly populist state of Pluto.