As a forex trader, have you noticed that a single statement from a central bank official can trigger market turbulence? The underlying logic lies in the hawkish and dovish stances of monetary policy. This article will analyze in depth from a trading perspective how central banks influence exchange rate trends through policy orientation.
Why do central bank policy statements cause forex market fluctuations?
The foreign exchange market is extremely sensitive to any signals from central banks. When officials from the Federal Reserve or the European Central Bank make comments about interest rates or economic outlooks, the market reacts immediately. This is because monetary policy directly affects a country's money supply and attractiveness.
In simple terms, central banks regulate their national economies by adjusting interest rates and money supply, and these decisions ultimately determine whether foreign capital is willing to flow into or out of the country. When market expectations do not align with central bank statements, the forex market can experience intense volatility, which is exactly when traders look for opportunities.
The duality of monetary policy: easing v

What is Return on Investment (ROI)?
Return on Investment (ROI) is essentially a key indicator for measuring investment efficiency, used to reflect how much profit you can gain from the funds you invested. In simple terms, how to understand ROI? It is the ratio of how much you earned to how much you invested, usually expressed as a percentage.
This metric has a wide range of applications, whether it’s personal stock trading, startup project evaluation, or a company's assessment of the value of a particular investment. Knowing how to calculate ROI is essential.
How to Calculate ROI? Detailed Explanation of the Core Formula
The calculation logic of ROI is quite straightforward: divide net profit by the invested cost, then multiply by 100% to get your ROI.
Core formula: ROI = ((Profit - Cost)) / Cost × 100%
Or a more detailed expression: How to calculate ROI = net income

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