- Nominal GDP is the total market value of all final goods and services produced in an economy in a given period, valued at the current year's prices. It reflects both changes in output volume and changes in price level. Thus, Current Production of Goods and Services × Current Prices = Nominal GDP. - Real GDP is the total market value of all final goods and services produced in an economy in a given period, valued at the prices of a base year. It adjusts for inflation and reflects only changes in output volume. Thus, Current Production of Goods and Services × Base year Prices = Real GDP.