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Decisions, Uncertainty, and All That: Fractals and Time Series Analysis
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Over the past thirty years the branch of applied microeconomics known as modern finance theory has developed and coalesced into the Capital Asset Pricing Model. CAMP is founded upon the efficient market hypothesis, which is represented mathematically as the assertion that financial time series, especially series of log-returns, should be well approximated bay random walk with increments drawn from a Gaussian or normal distribution. Some of the most exciting work in mathematics today in fractals and chaos theory shows that there are cracks in the foundation of CAMP. This column will trace some of the research and provide Mathematica tools to explore time series of log-returns. You can choose your favorite series, analyze, and judge for yourself.
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http://www.mathematica-journal.com/issue/v3i1/
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