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[/UseMoney]不知道有免费的下载,为保护已购买的用户,又分别加上两篇英文相关的文章:business cycle and stock market volatility a particle filter approach和finance and the business cycle a kalman filter approach with markov switching,[/UseMoney][/UseMoney][/UseMoney]
[此贴子已经被作者于2008-8-16 15:46:07编辑过]


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