Macroeconomics studies the economy as a whole. We study determinants to long-run growth of real GDP per capita. Why is real GDP per capita more than hundred times higher in some rich countries compared to some poor countries? We also study why economies experience booms and busts. Why is the unemployment rate sometimes high and sometimes low? Other questions addressed are: What are financial crises? How does the Central Bank impact the economy? We study aggregate production, consumption, investment, the labor market, and the effects of globalization.