The Black-Scholes model is fundamental in financial markets for valuing options, helping investors assess whether an option is fairly priced. By considering variables such as the underlying asset price, strike price, time to expiration, interest rate, and volatility, the model provides a theoretical value for options. It serves as a basis for many trading strategies and has significantly impacted the development of modern financial markets. Traders use this model to make informed decisions about buying or selling options, adjusting positions, and managing risks.