When preparing for SOA Exam C, which focuses heavily on actuarial models for financial economics, understanding how to apply stochastic processes is essential. Stochastic processes, in simple terms, are mathematical tools used to model systems or phenomena that evolve randomly over time. For actuarial risk modeling, these processes help you capture the uncertainty inherent in financial markets, insurance claims, interest rates, and other risk factors. Mastering this allows you to better price insurance products, assess liabilities, and manage risks with a realistic appreciation of variability rather than fixed assumptions.