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Talk1
Talk1

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Latency Arbitrage, Market Fragmentation, and Efficiency: A Two
Latency Arbitrage, Market Fragmentation, and Efficiency: A Two

... decline (approximately 1,000 points). During a five-minute period, some companies traded for as low as a penny and as high as nearly $100,000. The rout continued until an automatic stabilizer on the exchange paused trading for five seconds, after which the markets recovered [Bowley 2010]. Some have ar ...
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How are stock prices a!ected by the location of trade?

... underlying cash #ows. Closed-end shares, on the other hand, are claims not only to a portfolio of foreign stocks, but also to the dynamic trading strategy followed by fund managers. The di!erences between fund share prices and net asset values might be explained by the perceived value of this strate ...
Full text - Toulouse School of Economics
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... determine whether the new prudential regulation in Europe should recognize the long maturity of life insurance liabilities and the insurers’ role as intermediaries promoting intergenerational risk sharing (see Gollier [2008]), two aspects of insurance activities that are irrelevant in the banking se ...
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... After B. Mandelbrot identified the fractal structure of price fluctuations in asset markets in 1963 [1], statistical physicists have studied the economic mechanism that produces a fractal structure. Power law is an important characteristic in the fractal structure. Some research found that the size di ...
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answers to problems - U of L Class Index

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multi-market trading and market liquidity: the post-mifid picture
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Government Intervention in Markets

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the oilseed industry - Australian Oilseeds Federation

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Efficient-market hypothesis

In financial economics, the efficient-market hypothesis (EMH) states that it is impossible to ""beat the market"" because stock market efficiency causes existing share prices to always incorporate and reflect all relevant information. According to the EMH, stocks always trade at their fair value on stock exchanges, making it impossible for investors to either purchase undervalued stocks or sell stocks for inflated prices. As such, it should be impossible to outperform the overall market through expert stock selection or market timing, and that the only way an investor can possibly obtain higher returns is by purchasing riskier investments.The following are the main assumptions for a market to be efficient:A large number of investors analyze and value securities for profit.New information comes to the market independent from other news and in a random fashion.Stock prices adjust quickly to new information.Stock prices should reflect all available information.Financial theories are subjective. In other words, there are no proven laws in finance, but rather ideas that try to explain how the market works.There are three major versions of the hypothesis: ""weak"", ""semi-strong"", and ""strong"". The weak form of the EMH claims that prices on traded assets (e.g., stocks, bonds, or property) already reflect all past publicly available information. The semi-strong form of the EMH claims both that prices reflect all publicly available information and that prices instantly change to reflect new public information. The strong form of the EMH additionally claims that prices instantly reflect even hidden or ""insider"" information.Critics have blamed the belief in rational markets for much of the late-2000s financial crisis. In response, proponents of the hypothesis have stated that market efficiency does not mean having no uncertainty about the future, that market efficiency is a simplification of the world which may not always hold true, and that the market is practically efficient for investment purposes for most individuals.
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