Adding up all of the income in an economy in a given year is one approach to calculating which of the following?

The answer is Gross Domestic Product or GDP. It an essential indicator for the health of the economy, it focuses on the value o f good and services created for a certain period of time. There are two ways to measure the GDP first is the income approach can get by adding all the income accumulated in a year, the second ins expenditure approach can get by adding all the expenses.