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If an auto regressive moving average model (ARMA model) is assumed for the error variance, the model is a generalized auto regressive conditional heteroskedasticity (GARCH) .
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The simultaneous purchase and sale of a financial security in order to profit from the difference in the security price during the trading activity.
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Techniques for modeling and analyzing several variables, when the focus is on the relationship between a dependent variable and one or more independent variables.
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described by the Wiener process; a continuous-time stochastic process named in honor of Norbert Wiener.
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The process of using a computer program to place orders to trade securities in financial markets. Typically, these trades are made in exchange-traded instruments, such as listed equities, options, an…
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Value at Risk, a widely used risk measure of the risk of loss on a specific portfolio of financial assets.
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[Think of it as insurance. When people decide to hedge, they are insuring themselves against a negative event. This doesn't prevent a negative event from happening, but if it does happen and you're pr…
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generally speaking the way markets are organized at the impact of there structure on the price formation process.
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Econometric model that have the purpose to measure the effect of different risk measures on portfolio asset returns.
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often used in statistical abitrage as a way to identify how to combine some tradable instrument to obtain a *mean reverting* one.
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the process of taking in inputs such as market data, current news, and producing orders without human intervention.
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a market-neutral trading strategy enabling traders to profit from virtually any market conditions: uptrend, downtrend, or sideways movement. This strategy is categorized as a statisti…
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Numerical computing environment developed to allow matrix manipulations, plotting of functions and data and implementation of algorithms.
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a privately held financial software, data and media company headquartered in New York City.
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A measure of the degree of linear association between a pair of random variables.