Digital currency payment transfer in order to facilitate easy payment and give the payee more confidence in not letting go of their electronic wallet during the transaction. A cryptocurrency is a type of digital asset that relies on cryptography for chaining together digital signatures of asset transfers, peer-to-peer networking and decentralization. In some cases a proof-of-work or proof-of-stake scheme is used to create and manage the currency. Cryptocurrencies allow electronic money systems to be decentralized. The first and most popular system is bitcoin, a peer-to-peer electronic monetary system based on cryptography. A virtual currency has been defined in 2012 by the European
Currency War of 2009–11 relaxing some of Brazils anti-appreciation controls. Alarms were raised concerning a possible second 21st currency war in January 2013, this time with the most apparent tension being between Japan and the Euro-zone. Following the financial crisis of 2008 widespread concern arose among advanced economies concerning the size of their deficits; they increasingly joined emerging economies in viewing export-led growth as their ideal strategy. In March 2009, even before international cooperation reached its peak with the 2009 G-20 London Summit Economist Ted Truman became one of the first to warn of the dangers of competitive devaluation breaking out. He also coined