Aggregate Supply (AS) and Aggregate Demand (AD) model and AS/AD curves are essential to understand macroeconomic fluctuations (business cycles).

1. Aggregate Supply (AS) and Aggregate Demand (AD) model and AS/AD curves are essential to understand macroeconomic fluctuations (business cycles).

1. Discuss the importance AS-AD model in explaining the macroeconomic conditions of the economy and business cycles like recessions.
2. What factors shift AS and AD curves? How do you explain macroeconomic fluctuations using AS-AD model and AS/AD curves?

2. Macroeconomic goals and macroeconomic equilibrium are the key elements in macroeconomics.

1. What are the long-run macroeconomic goals? What is long-run macroeconomic equilibrium? How the goals are relate to the macroeconomic equilibrium?
2. Suppose that consumers and investors become pessimistic about the future health of the economy. What will happen to aggregate demand and to 
3. output?

I only need 200-250 words for each question.