The wage premium for the average college graduate (vs. the average high school graduate) has gone down significantly in recent years

What are "cash-out refinancings"?

What will be an ideal response?

When selecting explanatory variables to include in a regression

A) you should pick all observable variables available. B) you should pick all observable variables that are likely to have a meaningful impact on the dependent variable. C) ignore all variables that have t-statistics less than the critical value. D) ignore variables that have an R2 less than 1.