On this base, this paper uses factors including remained time to find the determination of discount.
通过描述我国上海证券交易所上市的封闭式基金的折价特征,用换手率、大盘指数以及剩余到期时间作为解释变量建立回归模型对基金折价率进行实证分析,表明换手率对基金折价影响显著,说明流动性因素是解释基金折价的重要原因;大盘指数对基金折价无解释能力;剩余到期时间也是影响基金折价的显著性因素。
We investigate an efficient mixed sealed-bid auction: Under this mechanism,the first bid auction and the second bid auction coexist;The efficiency and the expected surplus of the bidders and the expected revenue of seller are the same as in the standard first bid auction.
讨论了一个有效的混合密封拍卖机制:在该机制下,第一价格拍卖和第二价格拍卖同时存在;与标准的第一价格拍卖相比,配置物品的有效性、竞标者的期望剩余、物品所有者的期望收益都没有改变。
The conception of residual periods of elements in commutative pomonoid is introduced for the first time and it is proved that in residual monoid the identity is the greatest element if and only if the residual period of every elements is 1.
给出可换偏序立半群中元素的剩余周期的概念，证明了在剩余立半群中，么元为最大元当且仅当半群中每个元素的剩余周期均为１；讨论了元素的剩余周期的一些性质及一种特殊的剩余么牛群的Ａｂｅｌ群结构。
