← Chapter 12 - How the macroeconomy works Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All Equlibrium (three sector) Injections=Withdrawals i.e. I+G=S+T OR AD=Income Equilbrium (two sector) injections=Withdrawls Investement=savings AD=Income national income rising sum of injections>sum of withdrawls Changes in consumption Wealth effect, inflation, interest, expectations