<p>Derivatives are financial contracts that derive their value from an underlying asset. This asset could be a commodity, currency, stock, or any other tradable item. The contract itself is an agreement between two parties, where one party agrees to buy the asset at a predetermined price, and the other party agrees to sell it at that same price, regardless of the asset's market price at the time of delivery.</p>

<h2>How It Works</h2>
<p>Derivatives work by using a combination of leverage and risk transfer. When you enter into a derivative contract, you're essentially making a bet on the direction of the underlying asset's price. If you believe the price will rise, you might buy a call option, which gives you the right, but not the obligation, to buy the asset at a specified price (strike price) within a certain time frame (expiration date). If you believe the price will fall, you might buy a put option, which gives you the right to sell the asset at the strike price.</p>
<p>Derivatives can also be used to hedge against price fluctuations. For example, a farmer might sell a <a href="/NewSite/encyclopedia/futures-contract/" class="ency-link">futures contract</a> on his crops to lock in a certain price, protecting against a potential drop in the market price.</p>

<h2>Why It Matters</h2>
<p>Derivatives play a crucial role in the global financial system. They allow investors to manage risk, hedge against price fluctuations, and speculate on the direction of various markets. They also facilitate the trading of commodities and other assets that might otherwise be difficult to trade due to issues like perishability or illiquidity.</p>
<p>However, derivatives also carry significant risks. They are complex instruments that can lead to substantial losses if not understood properly. The 2008 financial crisis, for instance, was partly attributed to the misuse of derivatives. Therefore, it's essential for investors to understand the mechanics of derivatives and the risks involved before engaging in derivative trading.</p>