RTBECO Circular Flow Practice Test

The income approach to GDP sums up the incomes earned by the factors of production in an economy: wages and salaries, rents for land and property, interest on capital, and profits from businesses. To turn these incomes into a measure of overall output at market prices, we make adjustments for taxes on production and imports and subtract subsidies. This ensures we’re counting value at the prices consumers actually pay, not just the pre-tax incomes of producers. Conceptually, this approach rests on the idea that every dollar of output generates corresponding income for someone in the economy, so total income from these factor payments equals the value of production.

So the correct view is that GDP, from the income side, is the sum of these factor incomes with the necessary tax and subsidy adjustments. The other options point to different ways of measuring GDP or related concepts: the expenditure approach sums spending on final goods and services; net exports are a component within that expenditure framework; and money supply or the price level are broader monetary or price indicators, not the method for totaling GDP from incomes.