. We re-examine the income gradient in child general health and its evolution with child age in this country, using a very …-1, that the gradient emerges around age 2 and is constant from age 2 to age 17. In addition, we show that the gradient remains … large and significant when we try to address the endogeneity of income. Furthermore, our results indicate that the gradient …

and Wu [4] to define the discrete gradient of a function on a triangular mesh. We also use our new method to define the …

the position from reflection and transmission data by using a conjugate gradient method. In the second problem, the …