Convergence of Expectations (cont'd)

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Suppose $\{X_n\}$ is a sequence of indep. random variables with zero expectation. Consider their sum $S_n$ which have the following properties: $S_n$ converges a.s. to some non degenerate $S$ and

$$\lim_{n\rightarrow\infty}E[\max(S_n,0)]=\infty$$

Is there exists a condition under which $\lim_{n\rightarrow\infty}E[\max(S_n,0)]=E[\lim_{n\rightarrow\infty}\max(S_n,0)]$? $\max(S_n,0)$ is not monotonic sequence so we cannot use monotone convergence theorem. Also, the reverse Fatou's lemma cannot be applied since $S_n$ is not bounded.

Thank's!