Naturally, the most advantageous decision would be to buy dollars and consign them to an American bank. In turn, increasing demand for a certain currency leads to its further growth of its exchange rate.
Generally, economic indicators form large set of data used within the frame of fundamental analysis. An indicator’s numerical value is not as important as accordance of preliminary analytical estimates to actual
data. The most dramatic ups and downs in exchange rates occur exactly in case of substantial deviation of actual data from predicted values.
Besides interest rates the most important fundamental indicators include GDP, balance of trade, unemployment rate, inflation rate, etc. All these factors, to a certain extent, reflect a state of national economy, and therefore affect national currency’s exchange rate.
Forecasting and analysis of economical factors is not of considerable complexity. However, you should remember that the market is driven not by the factors themselves, but by expectations, i.e. expected results of a country's economical activity.