1. The long-run aggregate supply curve (LRAS) is Y = Yf, which depends on the amounts of resources and the level of technology innovation. If a country has more resources and better technology.

2. Suppose the wage rates of workers are based on the expected price level. If there is an unexpected increase in AD, it will cause the actual price level to increase. Then workers should raise their expected price level and negotiate a higher wage rate. Then which of the following is most likely to be true when the expected price increases?

3. Suppose the economy is in the long-run equilibrium, i.e., Y = Yf, and there is an unexpected decrease in AD. Assume that Yf is fixed.