According to the immigrant assimilation the typical earnings profiles of immigrants start lower and are steeper than the earnings profiles of the native for born. Draw a graph use the vertical axis for earnings and the horizon axis for years in the US workforce. Illustrate and label native-born and immigrant profiles on the same graph. Suppose the successive waves of the immigrants have lower skill/education levels that the is the decade 2001-2010 before, that are less skilled than those from 1991-2000 who are less skilled than those from 1981-1990... What would about this imply the accuracy of estimates obtained from cross-section data? (Cross-section data, such as census data, is the of data typically used to obtain the earnings profiles that are used to compare the earnings of and native born.)