Real GDP is a type of economic measure that helps to evaluate the total value of goods and services produced in an economy over a specific period of time. It takes into account any changes in prices that occurred during the same period, making it more reliable than the nominal GDP figure. Essentially, real GDP shows us how much is being produced – regardless of any inflation or deflation that may have occurred – allowing for a better comparison between different countries and/or points in time. Ultimately, it gives economists a way to accurately track sustainable economic growth.