Browsing by Author "0115375"
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A note on extraneous information in regression
Brook, Richard; Wallace, Dudley (1973)The TheilGoldberger ( 196 1) exposition of combining sample and prior information is well known and appears now in standard textbooks for graduate econometrics courses. Diminishing the value of the prior relative to the ... 
Estimation of variance after a preliminary test of homogeneity and optimal levels of significance for the pretest
Toyoda, T; Wallace, Dudley (1975)The question of whether to pool two samples in variance estimation is often decided via a preliminary F test. In this paper we show that the optimal pretest F value is unity for a onesided alternative, where the objective ... 
FullTime Schooling in LifeCycle Models of Human Capital Accumulation
Ihnen, LA; Wallace, Dudley (1975)A reducedform equation relating length of "formal schooling" to market, endowment, and ability parameters was derived for a lifecycle human capital accumulation model with alternative assumptions: (a) equal borrowing and ... 
Operational Techniques and Tables for Making Weak MSE Tests for Restrictions in Regressions
Goodnight, James; Wallace, Dudley (1972)Tables of critical points for the noncentral F are presented with noncentrality equal to 1/2 of numerator degrees of freedom for denominator degrees of freedom of 130, 40, 60, 120, 200, 400, and 1,000, and numerator degrees ... 
Optimal Critical Values for PreTesting in Regression
Toyoda, T; Wallace, Dudley (1976)In this paper we derive and present optimal critical points for pretests in regression using a minimum average relative risk criterion. We use the same type risk functions as Sawa and Hiromatsu [8] who, in a recent paper ... 
PreliminaryTest Estimation of the Error Variance in Linear Regression
Clarke, Judith A; Giles, David EA; Wallace, Dudley (198708)We derive exact finitesample expressions for the biases and risks of several common pretest estimators of the scale parameter in the linear regression model. These estimators are associated with least squares, maximum likelihood ... 
Sequential Methods in Model Construction
Ashar, VG; Wallace, Dudley (1972)"Inl statistical inference proper, the model is never questioned. . . . The methods of mathematical statistics do not provide us with a means of specifying the model." 1 Few would question the profundity of the above quotes. ... 
The lag relationship between wholesale and consumer prices
Silver, JL; Wallace, Dudley (1980)This paper examines the lag distribution relating wholesale to consumer price changes. Sims' causality test indicates a onesided lag structure. Following Hatanaka and Wallace, parameters of the lag distribution which can ... 
The Use of Error Components Models in Combining Cross Section with Time Series Data
Wallace, Dudley; Hussain, Ashiq (1969)A mixed model of regression with error components is proposed as one of possible interest for combining cross section and time series data. For known variances, it is shown that Aitken estimators and covariance estimators ... 
Weaker Criteria and Tests for Linear Restrictions in Regression
Wallace, Dudley (1972)The standard F test for linear restrictions in regression is relevant as a criterion but fails to capture the notion of tradeoff between bias and variance. Average squared distance criteria yield operational tests that are ...