econometric modelsJuly 22, 2026economic scarcityJuly 22, 2026 July 22, 2026 Typically measured by the annual change in the real GDP. Related Articles: Where We Don’t Want To WorkWhere Businesses Charge for a ChargeWhere to Find a Directive GDPWhat We Need to Know About Defense Spending TradeoffsHow Can We Judge the Size of Military Spending? Share