users are adopting it in huge numbers. Russia Government-controlled Sberbank of Russia owns YooMoney – electronic payment service and digital currency of the same name. Sweden Sweden is in the process of replacing all of its physical banknotes, and most of its coins by mid-2017. However, the new banknotes and coins of the Swedish krona will probably be circulating at about half the 2007 peak of 12,494 kronor per capita. The Riksbank is planning to begin discussions of an electronic currency issued by the central bank to which "is not to replace cash, but to act as complement to it". Deputy Governor Cecilia Skingsley states that cash will continue to spiral out of use in Sweden, and while it is currently fairly easy to get cash in Sweden, it is often very difficult to deposit it into bank accounts, especially in rural areas. No decision has been currently made about the decision to create "e-krona". In her speech, Skingsley states: "The first question is whether e-krona should be booked in accounts or whether the ekrona should be some form of a digitally transferable unit that does not need an underlying account structure, roughly like cash." Skingsley also states: "Another important question is whether the Riksbank should issue e-krona directly to the general public or go via the banks, as we do now with banknotes and coins." Other questions will be addressed like interest rates, should they be positive, negative, or zero? Switzerland In 2016, a city government first accepted digital currency in payment of city fees. Zug, Switzerland, added bitcoin as a means of paying small amounts, up to , in a test and an attempt to advance Zug as a region that is advancing future technologies. In order to reduce risk, Zug immediately converts any bitcoin received into the Swiss currency. Swiss Federal Railways, government-owned railway company of Switzerland, sells bitcoins at its ticket machines. UK In 2016, the UK's chief scientific adviser, Sir Mark Walport, advised the government to consider using a blockchain-based digital currency. The chief economist of Bank of England, the central bank of the United Kingdom, proposed the abolition of paper currency. The Bank has also taken an interest in blockchain. In 2016 it has embarked on a multi-year research programme to explore the implications of a central bank issued digital currency. The Bank of England has produced several research papers on the topic. One