Explanation:
The aggregate demand curve is downward sloping. It implies price levels are falling and the quantity of output will increase as well as the domestic income. The theories that can explain why the aggregate demand curve is downward sloping: the Pigou's wealth effect, the Keynes's interest-rate effect, and the and Mundell-Fleming's exchange-rate effect.
Which ever you like the most...
The Qin unified China, creating the first dynasty ruled by the first emperor Qin Shi Huang. Also the Qin created of the Great Wall and a Terracotta army.
