Aggregate demand is the total amount of final goods and services demanded from household, businesse, government and foreigner. Those components are identical to the component in calculate real gdp using expenditure approach. Fixed price and expenditure plans Kurva aggregate expenditure dan kurva Dijual dan dibeli saat customernya willing to buy, asumsi harga tetap dan kuantitasnya berdasarkan demand. Beda AE dan Ape = di bagian plan. Kalo APE itu isinya perencanaan.