Do stock prices move together too much?
We show that comovements of individual stock prices cannot be justified by economic fundamentals. This finding is a rejection of the present value model of security valuation. Unlike other tests of this model, ours is robust in that it allows for volatility in ex ante rates of return. The only const...
| Main Authors: | , |
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| 格式: | Working Paper |
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MIT Center for Energy and Environmental Policy Research
2009
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| 在线阅读: | http://hdl.handle.net/1721.1/50141 |