The price of gold has been surging in recent years. For perspective, two years ago, the price of gold was only $2,000 per ounce. Indeed, since the start of this decade, the price of gold has delivered a better return than the Nasdaq 100 – an index of large, mostly tech, US companies. We can also track investor enthusiasm for gold by looking at how much money has been invested into exchange-traded funds (ETFs) in gold – the most popular way for investors to buy gold. So, what has driven this dramatic increase in the price of gold?