It doesn't affect GDP. Both the SRAS and AD lines go to the left.
What is GDP?
The market worth of all the final goods and services produced and sold (not resold) in a certain time period by countries is measured in dollars using the term "gross domestic product" (GDP). This measurement is frequently changed before it can be trusted as an indicator because of how complicated and subjective it is. To compare living standards between countries, using a basis of GDP per capita at purchasing power parity (PPP) may be more useful, whereas nominal GDP is more useful for comparing national economies on the global market. GDP (nominal) per capita does not, however, reflect differences in the cost of living and the inflation rates of the countries. The contribution of each industry or sector to the overall GDP can also be quantified.
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