Currency carry trade refers to the act of borrowing one currency that has a low interest rate in order to purchase another with a higher interest rate. A large difference in rates can be highly profitable for the trader, especially if high leverage is used. However, with all levered investments this is a double edged sword, and large exchange rate price fluctuations can suddenly swing trades into huge losses.
Determine the profits required to cover any losses: Along with calculating your risks before any trade, it's also worth calculating how much you would need to make to regain those funds in any future trade. It's often harder to earn money back than it is to lose it, simply because your remaining investment pool is smaller, which means you have to make a larger profit (percentage wise) to break even.
Economic numbers: While economic numbers can certainly reflect economic policy, some reports and numbers take on a talisman-like effect: the number itself becomes important to market psychology and may have an immediate impact on short-term market moves. "What to watch" can change over time. In recent years, for example, money supply, employment, trade balance figures and inflation numbers have all taken turns in the spotlight.