The economic calendar is a schedule of the most relevant economic events followed by investors. These events often have a significant impact on the financial markets and currency volatility.Foreign exchange markets are most affected by monetary and fiscal policy announcements, as well as by financial reports. A currency calendar allows investors to know what is going to happen when.Some of the most important events for the currency market include the US non-farm payroll reports, inflation figures and changes in interest rates. Investors also scrutinise central bank meetings and statements for even slight indicators of impending monetary policy.