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Advanced Proof

Compound Poisson Processes: Building Models for Discrete Jumps

Learners often conflate the Compound Poisson Process with a simple Poisson process. Remember: the Poisson process N(t) N(t) counts events, whereas the Compound Poisson Process S(t) S(t) calculates the weighted sum of those events. They are fundamentally different objects: one is a counter, the other an accumulator.
Institutional Reference: Advanced Stochastic Processes
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