Titlebook: Econometrics; John Eatwell,Murray Milgate,Peter Newman Book 1990 Palgrave Macmillan, a division of Macmillan Publishers Limited 1990 econo

aspersion

byline

t also decide how many groups to use; a smaller number is more manageable but will cause more of the original information to be lost. The research worker seeks a solution to this problem that will best serve his objectives, or those of some decision-maker who will use his results.

截断

assail

过于平凡

Asia-Pacific Fishing Livelihoodse choice: for example, the decision regarding whether a person joins the labour force or not, the decision as to the number of cars to own, the choice of occupation, the choice of the mode of transportation, etc.

模范

10 Steps to Build an Asian Brand,elevant economic variables and ε is the vector of unknown random errors. The most common method of estimating β. is the method of least squares: . argmin ε(β)′ε(β), where ε(β) ≡ Y - Xβ. Under fairly general assumptions . is an unbiased estimator of β. provided E(ε.|X) = 0 for all t, where ε. is the tth-coordinate of ε.

BILIO

斗志

Multiple

Antagonist

Errors in Variables,umns of . are zero vectors. In the conventional case the errors are uncorrelated in the limit with the latent values .* and the disturbances u; and the errors have zero means, constant variances, and zero autocorrelation. In observed variables the model becomes