期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
基于Copula-GARCH类模型的证券分类方法
1
作者 毛杰 《系统工程》 CSSCI 北大核心 2017年第4期46-50,共5页
本文尝试提出一种全新的证券分类方法:即运用Copula-GARCH类模型来计算两两证券价格序列间的静态Copula系数、以测算其同期相依性,并据此构建各样本间的相似矩阵,再根据相似矩阵对相关证券进行模糊聚类分析,从而对相关证券进行分类。本... 本文尝试提出一种全新的证券分类方法:即运用Copula-GARCH类模型来计算两两证券价格序列间的静态Copula系数、以测算其同期相依性,并据此构建各样本间的相似矩阵,再根据相似矩阵对相关证券进行模糊聚类分析,从而对相关证券进行分类。本文所提出的证券分类方法不以有效市场假说为基础,比默认有效市场假说的证券分类方法更具普适性,更贴近于证券市场的实际情况、能更真实地反映证券市场的内在机理和波动特征。本文的实证研究,量化测定了中证100指数成份股的同期相依性,并据此对中证100指数的成份股进行分类,印证了本文所提出的基于Copula-GARCH类模型的证券分类方法的有效性和实际价值。 展开更多
关键词 证券分类 模糊聚类分析 Copula-GARCH类模型 同期相依性 有效市场假说
原文传递
分类证券市场概况
2
《证券市场导报》 1994年第10期47-47,共1页
关键词 分类证券 市场概况
下载PDF
A New Approach to Predict Financial Failure: Classification and Regression Trees (CART) 被引量:1
3
作者 Ayse Guel Yllgoer UEmit Dogrul Guelhan Orekici Temel 《Journal of Modern Accounting and Auditing》 2011年第4期329-339,共11页
The increase of competition, economic recession and financial crises has increased business failure and depending on this the researchers have attempted to develop new approaches which can yield more correct and more ... The increase of competition, economic recession and financial crises has increased business failure and depending on this the researchers have attempted to develop new approaches which can yield more correct and more reliable results. The classification and regression tree (CART) is one of the new modeling techniques which is developed for this purpose. In this study, the classification and regression trees method is explained and tested the power of the financial failure prediction. CART is applied for the data of industry companies which is trade in Istanbul Stock Exchange (ISE) between 1997-2007. As a result of this study, it has been observed that, CART has a high predicting power of financial failure one, two and three years prior to failure, and profitability ratios being the most important ratios in the prediction of failure. 展开更多
关键词 business failure financial distress PREDICTION classification and regression trees (CART)
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部