If resource prices are flexible, the long-run aggregate supply curve is vertical

Which of the following is the significance of a country's price index? a. It helps in measuring changes in the nominal interest rate in a country

b. It helps in measuring the total disposable income of a country. c. It helps in determining a country's real GDP each year. d. It helps in measuring changes in the prices of only luxury goods. e. It helps in measuring the demand for goods and services exported by a country.

Which of the following would cause a rightward shift in the aggregate supply curve?

a. Larger-than-expected wage increases. b. Lower oil prices. c. Increased investment spending. d. Greater government regulation.