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The efficient-market hypothesis (EMH) is one of the most important economic and financial hypotheses that have been tested over the past century. Due to many abnormal phenomena and conflicting evidence, otherwise known as anomalies against EMH, some academics have questioned whether EMH is...
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properties for detecting bubbles. Empirical analysis using price-dividend ratios of S&P500 highlights the advantages of our …
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We propose an extension of the class of rational expectations bubbles (REBs) to the more general rational beliefs … beliefs can thus account for speculative bubbles, without the need for irrational agents or limits to arbitrage. Many of the … shortcomings of REBs that make rational bubbles implausible can be overcome once we relax the ergodicity requirement. In particular …
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Although there are many stock market anomalies which the Efficient Market Hypothesis (EMH) finds difficult to explain, it also has its strengths, and so far no alternative hypothesis has been developed which can explain what the EMH explains but which can also do a better job in explaining the...
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