计量经济学题目求助

Question

如题， 请各位大神帮忙
Suppose that the classical regression model appies to a situation at hand, but the true value of the constant is zero:B1=0, compare the SSE of OLS estimator b to SSE of another LS estimator b estimated with no constant.
2 Consider the OLS regression estimator b. now repeat the same regression with demeaned dependent and independent variables, that is average of a variable is substracted from all data points of that variable. Now repeat the regression with the estimator C
A. Derive the difference of SSEs from the two regressions.
B, What is the value of C1

Answer 1

假设古典回归模型应用到一个情况,但是恒为零的真正价值:B1 = 0,比较OLS估计量的上交所b b SSE另一个LS估计量的估计没有常数。
2考虑OLS回归估计量b现在重复相同的回归与贬低了依赖和独立变量,变量的平均减去从所有数据点的变量。现在重复的回归估计量C
答:学生的差异来自两个回归。
B,C1的值是什么追问

谢谢你帮我翻译，但是我是要求解阿。。 不是求翻译，不过谢谢你啦

谢谢你帮我翻译，但是我是要求解阿。。 不是求翻译，不过谢谢你啦