Abstract
For a sequenceξ1,ξ2, · ·· of i.i.d. random variables letX0= 0 andXk= max(Xk–1+ξk, 0) fork= 1, 2, ···. Let. These stopping times are used in Page's (1954) one-sided cusum procedures and are also important in queueing theory. Various asymptotic properties ofNxare derived.

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