In: Finance
Using illustrative graphs show how the following technical trading rules operate in forecasting currency rates
A) Moving average model
B) The filter rules model
A) Moving Average Model
A variety of mechanical trading rule is the “moving average” class. Moving averages bypass the short-run zigs and zags of the exchange rate to permit the technician to examine trends in the series. A moving average is the average closing price of the exchange rate over a given number of previous trading days. The length of the moving average “window (the number of days in the moving average) governs whether the moving average reflects long- or short-run trends. Any moving average will be smoother than the original exchange rate series, and long moving averages will be smoother than short moving averages.
B) The Filter Rules Model
A well-known type of mechanical trading rule is the “filter rule,” or “trading range break” rule which counsels buying (selling) a currency when it rises (falls) x percent above (below) its previous local minimum (maximum). The size of the filter, x, which is chosen by the technician from past experience, is generally between 0.5 percent and 3 percent.