We consider two general classical risk model in this paper, the effects of timing of payments and interest on the surplus process can be included.

本文研究两类一般的离散时间风险模型下的破产概率。即是在经典风险模型下考虑保费支付的不同时刻和利息的引入对破产概率的影响。

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And the research to agriculture surplus labor transfer in China is still in the elementary stage on the whole, although having acquired some general achievement.

而对我国农业剩余劳动力转移问题的研究，虽然已经取得了一些阶段性成果，但总体而言仍然处于起步阶段。

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In general, however, discriminatory disclosure can be optimal, because it reduces the information rent accrued to private types of the buyer without much impact on the trade surplus.

然而，一般来说，歧视性的信息披露政策有可能对于卖方而言是最优的，因为它可以减少信息租金而对交易剩余的影响不大。

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