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幼儿记忆回涨实验研究 被引量:2
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作者 姚清如 陈碧光 +1 位作者 吴三淑 刘凤霞 《心理科学》 CSSCI CSCD 北大核心 1996年第1期16-18,63,共4页
以哈尔滨师范大学幼儿园全体幼儿为对象(未经筛选),采用录音机播放识记材料的方法,对幼儿记忆回涨现象进行了研究。结果发现:幼儿确实存在着不同于艾宾洁斯遗忘曲线的记忆回涨现象,而且年龄不同记忆回涨高峰时间亦不相同;复习与... 以哈尔滨师范大学幼儿园全体幼儿为对象(未经筛选),采用录音机播放识记材料的方法,对幼儿记忆回涨现象进行了研究。结果发现:幼儿确实存在着不同于艾宾洁斯遗忘曲线的记忆回涨现象,而且年龄不同记忆回涨高峰时间亦不相同;复习与回涨高峰的关系实验结果发现,幼儿记忆回涨高峰期间复习效果最好。 展开更多
关键词 幼儿 记忆回涨
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记忆回涨现象综述 被引量:1
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作者 王莹 《林区教学》 2008年第1期5-7,共3页
艾宾浩斯(Ebbinghaus)用无意义音节作材料对遗忘进程的研究及根据其结果绘成的遗忘曲线,作为在成人身上对无意义材料遗忘进程的经典研究,无疑具有很高的科学性和权威性。但记忆的过程中存在一个特殊的现象——记忆回涨,它与经典的遗忘... 艾宾浩斯(Ebbinghaus)用无意义音节作材料对遗忘进程的研究及根据其结果绘成的遗忘曲线,作为在成人身上对无意义材料遗忘进程的经典研究,无疑具有很高的科学性和权威性。但记忆的过程中存在一个特殊的现象——记忆回涨,它与经典的遗忘规律相悖。所以,仅根据Ebbinghaus在特定条件下的实验结果绘成的遗忘曲线,即得出所谓的"遗忘规律",并推广用于理论指导和实践应用无疑有所疏漏。 展开更多
关键词 记忆回涨 测量方法 综述 学生教育
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国储抛铜进行时,铜价又回涨市中
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作者 李杨 《中国金属通报》 2005年第47期23-23,共1页
关键词 进行时 铜价 伦敦铜 库存 继续保持 回涨 支撑因素 现货价格 全球经济 铜消费
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小学儿童对有意义材料的遗忘进程之规律的实验研究
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作者 杨巍峰 《心理科学》 CSSCI CSCD 北大核心 1997年第1期90-91,共2页
关键词 小学儿童 遗忘进 遗忘规律 实验研究 记忆回涨 遗忘曲线 无意义 实验材料 心理学教材 实验结果
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Risk-Neutral Dynamic of Forward-Looking Default Probabilities and Recovery Rates: Evidence From Credit Default Swap Prices of DOW30 Companies
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作者 Chavalit Kitjakarnlertudom Sira Suchintabandid 《Chinese Business Review》 2011年第10期811-843,共33页
In modem financial markets, the credit default swap (CDS) market has supplanted the bond market as the industry gauge for a borrower's credit quality. Therefore, it is very important to value CDS accurately by gett... In modem financial markets, the credit default swap (CDS) market has supplanted the bond market as the industry gauge for a borrower's credit quality. Therefore, it is very important to value CDS accurately by getting closer to more realistic pricing models. So far there have been no models for extracting forward-looking credit information to value CDS. In current practice, historical data is used in a credit default swap pricing model. One of the reasons was the difficulty when the market for credit derivatives was small, to extract forward-looking credit information such as recovery rates and default probabilities from traded securities. Since the CDS market has undergone rapid expansion in recent years, the possibilities of extracting forward-looking credit information have increased. Our work significantly extends Das and Hanouma (2009) where a flexible jump-to-default model was introduced to obtain implied recovery rates. We improve the flexible jump-to-default model where forecasted forward-looking hazard rates and recovery rates can be extracted using stock prices, stock volatilities and data from credit default markets to forecast CDS spreads. Instead of using exogenously assumed constant recovery rates and default probabilities from a credit rating agency, we use forward-looking hazard rates and recovery rates to price and forecast CDS spreads. We also compare out-of-sample market CDS spreads with our forecasted CDS spreads to check how well our model performs. Our model fit the market CDS spreads very well across all time to maturity CDS contracts except in some extreme cases when there is a big jump in CDS spreads. 展开更多
关键词 financial derivatives derivatives pricing credit default swaps
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