The stock market will not "collapse" 50% in 2014. Sure, they will go down some day, but it will not be in 2014! Typical play on emotions, stay away from those fraudsters!
The shares of the supermarket chain Tesco fell by 50% recently. I don't think the whole stockmarket will follow but companies are immune from this.
The main culprit for the falling stock market, the whole of China, whose economy is one of the largest in the world, it depends on the economy and currency of other countries, and whose performance plummeted because of the crisis. China is faced with the overproduction of goods on the world market (which he put a lot of effort), which caused a chain reaction of financial problems around the world. Following the stock markets fall was recorded on the market of raw materials – are rapidly losing in the price of metals and oil.