JaneFoley.JPG-Jane Foley is research director at Forex.com. The opinions expressed are her own.-

The discrediting of the efficient markets theory in the aftermath of the financial crisis appears to have been accompanied with growing support for the view that rather than efficient in nature, financial markets are predisposed towards the formation of bubbles.

A bubble can simply be defined as an occurrence that begins when the price of an asset has been driven significantly above it "fair" value. According to the efficient markets theory this would not happen.

If bubbles are a natural outcome of financial market activity it is relevant to ask whether the very loose fiscal and monetary policies of many central banks and governments are presently sowing the seeds of the next bubble.

Even though the real economies of the U.S., UK, Eurozone and Japan continue to be defined by expectations of rising unemployment and falling real wages, access to cheap money has already helped restore the profitability of many investment banks.