At this time, Bitstamp lists btc at $102.98 usd, and MtGox lists it at $118.88220 usd. Why are the markets so inefficient that the gap is so large? Is it a volume issue? Bitstamp lists the 24h volume at 20459 BTC, and MtGox at 53187 BTC, so between the two there's about 9 million dollars of btc trading hands per day.<p>Is it that the potential profit at the current volume levels is too low, or the potential profit at the currently imposed marketplace limits is too low, or is it that dollars-to-bitcoin transactions take too long to complete to successfully cash in on the difference, or is it something else?<p>I'm very interested in bitcoin and would be fascinated to hear any theories/explanations.