Cost-Push Inflation and Demand-Pull Inflation
The following two videos discuss how inflation can happen in the economy. They discuss the specific cases of cost-push inflation and demand-pull inflation. Note which of the two curves - Aggregate Demand or Aggregate Supply - causes the inflation problem in each case. The second video discusses a specific case from our history - the demand-pull inflation that occurred in the U.S. under President Johnson.
Source: Khan Academy, https://www.khanacademy.org/economics-finance-domain/ap-macroeconomics/national-income-and-price-determinations/changes-in-the-ad-as-model-in-the-short-run-ap/v/cost-push-inflation; and https://www.khanacademy.org/economics-finance-domain/ap-macroeconomics/national-income-and-price-determinations/changes-in-the-ad-as-model-in-the-short-run-ap/v/demand-pull-inflation-under-johnson
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