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 fast that it would lead to social unrest in China, bankruptcy for export dependent companies and "disaster for the world". In October, China posted a record surge in its foreign exchange reserves, which was seen as a "target around the neck of China’s exchange rate regime" in the effort to get the country to allow its currency to appreciate. In reaction, Geithner suggested China’s attempts at limiting gains were the reason for capital controls and currency-market interventions in other emerging economies. "What’s happening is, as China holds its currency down, their currencies are moving up and they’re having to work