Table 1. Summary Statistics on Price Changes.
| Currencies or Assets | Mean of Daily Returns | Standard Deviation of Daily Returns | Annualized Volatility |
|---|---|---|---|
| Diablo III | -0.2% | 9.3% | 146.9% |
| World of Warcraft | 0.5% | 2.7% | 42.7% |
| Bitcoin | 1.4% | 7.3% | 115.3% |
| USD per 1 Euro | -0.0% | 0.4% | 6.3% |
| USD per 1 JPY | 0.1% | 0.5% | 7.9% |
| USD per 1 KRW | 0.0% | 0.8% | 12.6% |
| USD per 1 CNY | -0.0% | 0.1% | 1.6% |
| Gold Prices | -0.1% | 1.3% | 20.5% |
| Equities(Small Size) | 0.0% | 2.9% | 45.8% |
| Equities(Middle Size) | 0.0% | 2.1% | 33.2% |
| Equities(Large Size) | 0.0% | 1.6% | 25.3% |
We report summary statistics on the daily returns of various assets. The mean, standard deviation, and annualized volatility are reported. 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. For comparison, we report the statistics of Bitcoin, Euro, Japanese Yen (JPY), South Korean Won (KRW), and Chinese Yuan (CNY) exchange rates with the U.S. Dollar, as well as gold and equities. We use all of the daily prices in 2013 for the assets not related to games.