The group of goods and services used to compute the GDP deflator changes automatically over time, but the group of goods and services used to compute the CPI does not

An autoregression is a regression

A) of a dependent variable on lags of regressors. B) that allows for the errors to be correlated. C) model that relates a time series variable to its past values. D) to predict sales in a certain industry.

As the unemployment rate falls,

A) the proportion of the unemployed finding a job increases. B) the separation rate increases. C) the young and unskilled experience larger-than-average decreases in unemployment. D) both A and C. E) all of the above