Marginal utility is the total amount of satisfaction one receives from the consumption of a certain quantity of a good

Frictional unemployment will always exist since

A) some workers will always want to make a job transition. B) the capitalist system promotes unemployment. C) mismatches in skills will always exist. D) the U.S. economy will continue to shrink.

When your multiple regression function includes a single omitted variable regressor, then

A) use a two-sided alternative hypothesis to check the influence of all included variables. B) the estimator for your included regressors will be biased if at least one of the included variables is correlated with the omitted variable. C) the estimator for your included regressors will always be biased. D) lower the critical value to 1.645 from 1.96 in a two-sided alternative hypothesis to test the significance of the coefficients of the included variables.