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Academic Earth is a website launched on March 24, 2009, by Richard Ludlow and co-founders Chris Bruner and Liam Pisano, [1] [2] which offers free online video courses and academic lectures from the world's top universities such as UC Berkeley, UCLA, University of Michigan, University of Oxford, Harvard, MIT, Princeton, Stanford, and Yale. [3]
In econometrics, as in statistics in general, it is presupposed that the quantities being analyzed can be treated as random variables.An econometric model then is a set of joint probability distributions to which the true joint probability distribution of the variables under study is supposed to belong.
Suppose that we model our data as = + + +. If we split our data into two groups, then we have = + + + and = + + +. The null hypothesis of the Chow test asserts that =, =, and =, and there is the assumption that the model errors are independent and identically distributed from a normal distribution with unknown variance.
Econometrics is an application of statistical methods to economic data in order to give empirical content to economic relationships. [1] More precisely, it is "the quantitative analysis of actual economic phenomena based on the concurrent development of theory and observation, related by appropriate methods of inference."
As a Mercatus Scholar, Davies has given lectures on economic policy topics for staff at the U.S. House of Representatives. [11] Starting in 2012, he produced a series of videos on economics and statistics for the Institute for Humane Studies, the Foundation for Economic Education, and Certell.
Bayesian econometrics is a branch of econometrics which applies Bayesian principles to economic modelling. Bayesianism is based on a degree-of-belief interpretation of probability , as opposed to a relative-frequency interpretation.
In econometrics, the seemingly unrelated regressions (SUR) [1]: 306 [2]: 279 [3]: 332 or seemingly unrelated regression equations (SURE) [4] [5]: 2 model, proposed by Arnold Zellner in (1962), is a generalization of a linear regression model that consists of several regression equations, each having its own dependent variable and potentially ...
In econometrics, the equations of a structural form model are estimated in their theoretically given form, while an alternative approach to estimation is to first solve the theoretical equations for the endogenous variables to obtain reduced form equations, and then to estimate the reduced form equations.