Economic news can quickly change market expectations and cause noticeable movements in currency prices. When following best forex brokers I think it is useful to watch inflation data, employment reports, central bank decisions, and GDP figures, as these releases can influence demand for a currency and increase volatility. The reaction often depends on how actual results compare with forecasts, not just whether the figures look positive or negative. I also find broker news and market analysis helpful for understanding why similar announcements can produce very different price reactions.