set includes characteristics that were found on the referral form of any county (typically just maternal age, previous breastfeeding experience, and name, which might have signaled race/ethnicity), in addition to other observable characteristics that were thought to influence the breast feeding decision.
of primary interest is the individually perceived relevance of professional triathlon, which was measured with the Sports Involvement Inventory (SII), a scale developed by Shank and Beasley (1998).
During our estimations, we identified considerable heteroscedasticity and serial correlation, as well as endogeneity of the regressors
in the two-stage least square (2SLS) estimation of Equation (9).
Response (Energy) 1 WBE, CHW, HW DBT, LTEQ 2 WBE, HW DBT, LTEQ 3 WBE DBT * S--Synthetic data from detailed simulation program; C--Detailed simulation model predictions calibrated against few months of monitored data; A--Actual monitored data.
m] is the estimated coefficient of regressor
x for outcome m from the multinomial logit regression.
The remaining regressors
are described above, except for Age.
Panel regression results, 1960-2007 Regressor
Model (1) Model (2) Inflow/Outflow 0.
Hence, we add UR and IR as additional regressors
in all demand curves.
Third, the econometric methodology is relieved of the burden of establishing the order of integration amongst the variables and of pre-testing for unit roots, because the ARDL approach to testing the existence of long-run relationship is applicable irrespective of whether the underlying regressors
are purely I(0), purely I(1) or fractionally integrated.
Taking cognizance of this fact, the author introduced additional second order regressors
to all 4 models to see a) if there is any change in the direction of granger-causality being captured by the models, and b) to see if there is any noticeable improvement in the strength of the granger-causal relationship being captured by the models.
This had the effect of raising both college and high school graduate average wages (making the college graduate coefficient effect for this regressor
positive and the high school graduate coefficient effect negative).
Pre-test results showed that the explanatory power of the estimating equation was far much better when the log transformed interest rate (r), rather than R, was used as a regressor