The combination of speculation and provision of genuine services means that financial markets are prone to regular crises that cause significant damage to the real economy
The long-term cost to the economy of the 2007-8 financial crisis due to its effects on demand and growth was even higher than the cost of bailing out the banks
Almost all trading in financial markets is speculative and this leads to the creation of market bubbles, where the price of a particular assets rises massively and then falls
A group of individuals or institutions collude to fix prices or exchange information that will lead to gains for themselves at the expense of other participants in the market
In the Libor scandal of 2008, financial institutions were accused of fixing the London Interbank Lending Rate (LIBOR), one of the most important rates in the world