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. 2015 Apr 28;10(4):e0123071. doi: 10.1371/journal.pone.0123071

Table 2. Devaluation of Currencies.

Currencies or Assets Devaluation = (price at the beginning / price at the end—1)
Diablo III 1,378.2%
World of Warcraft -34.1%
Bitcoin -98.2%
Euro 4.3%
Japanese Yen -18.1%
South Korean Won 0.8%
Chinese Yuan 3.2%
Gold 40.0%

We measure the devaluations of various currencies and gold. The devaluation of a currency is calculated as: (price at the beginning/price at the end—1). A negative devaluation indicates an increase in currency value (revaluation). Currency prices are measured in U.S. dollars, using the exchange rates acquired from www.oanda.com. The data period is from November 2012 to November 2013 for Diablo III currency and from July 2013 to November 2013 for World of Warcraft currency. We use the full 2013 data for Bitcoin, real currencies, and gold.