An estimated regression coefficient is 10 with a standard error of 5. The null hypothesis is that the partial regression coefficient equals zero. What is the value of the t-statistic for testing the null hypothesis of the regression coefficient?

The difference between an import quota and a tariff that results in the same domestic price is

a. none; they are the same b. the quantity demanded is higher under the tariff c. the world price is higher under the quota d. the tariff revenue goes to the domestic government; quota benefits may go to foreigners e. none because both quotas and tariffs are illegal

Ceteris paribus, if the average price level falls, then the _____ effect will result in _____ in the purchases of goods and services.

A. Real balances; an increase B. Foreign trade; a decrease C. Interest rate; a decrease D. Cost; an increase