Digital currency of its creators. "Forbes" writer Tim Worstall has written that the value of bitcoin is largely derived from speculative trading. Bitcoin has also been criticised for its energy inefficient SHA-256-based proof of work. Digital currency Digital currency (digital money, electronic money or electronic currency) is a type of currency available in digital form (in contrast to physical, such as banknotes and coins). It exhibits properties similar to physical currencies, but can allow for instantaneous transactions and borderless transfer-of-ownership. Examples include virtual currencies and cryptocurrencies and central bank issued money accounted for in a computer database (including digital base money). Like
Currency War of 2009–11 a "scapegoat" for the US's failings. China accused the US of waging the currency war and that it has "exercised financial policies characterised as 'economic egoism.'" In April 2011, the "Financial Times" reported that Chinese officials have signalled 2016 as a date when they expect to stop intervening against their currency by buying dollar assets. Brazil is a large economy which has generally allowed their currency to float freely, with the exception of some low level interventions to counter large capital inflows resulting from major stock sales. As a result, since early 2009 her currency has risen substantially against the