Macroeconomics- Everything You Need to Know

Introduces fundamental economic ideas such as scarcity, opportunity cost, and the production possibilities curve. It also covers comparative advantage, terms of trade, and basic economic systems like capitalism and the circular flow model, along with transfer payments, subsidies, and factor payments.

Explains the laws of demand and supply, how they interact to form equilibrium, and the effects of shifts in these curves. It differentiates between price changes (movement along the curve) and other factors that cause shifts, leading to shortages or surpluses.

Discusses the three main goals of an economy: growth, low unemployment, and stable prices. It defines and explains GDP, what is and isn't included in its calculation, nominal vs. real GDP, and the business cycle. It also covers different types of unemployment (frictional, structural, cyclical), the natural rate of unemployment, and criticisms of unemployment measurements. Finally, it addresses inflation, deflation, disinflation, nominal vs. real wages/interest rates, and how to measure inflation using CPI and the GDP deflator. The causes of inflation, including the quantity theory of money, demand-pull, and cost-push inflation, are also reviewed.

Explores aggregate demand (AD) and its downward slope due to the wealth, interest rate, and foreign trade effects. It explains factors that shift AD and introduces the aggregate supply (AS) curve in both the short run and long run, including factors that shift AS. Key economic states like full employment, recessionary gaps, and inflationary gaps are illustrated with the AD/AS model. Stagflation, long-run adjustments, and economic growth are also discussed. The Phillips curve, which shows the relationship between inflation and unemployment, is introduced. Lastly, it defines fiscal policy (government spending and taxation), its expansionary and contractionary forms, and the spending and tax multipliers. The concept of national debt and crowding out is also covered.

Defines money, its functions, and different types (commodity vs. fiat). It explains M1 money supply, fractional reserve banking, and bank balance sheets. The money multiplier is introduced, along with the money market graph, showing the determination of nominal interest rates. Monetary policy, controlled by the Federal Reserve, is detailed—including expansionary and contractionary policies and the three tools used: reserve requirements, the discount rate, and open market operations. The distinction between the discount rate and the federal funds rate is clarified. The loanable funds market is also described, showing the demand and supply of loans and their impact on the real interest rate, further illustrating crowding out.

Covers the balance of payments, including the current account (balance of trade, investment income, net transfers) and the financial account. It highlights the inverse relationship between deficits/surpluses in these accounts. Foreign exchange is introduced, defining currency appreciation and depreciation, and their effects on net exports. The foreign exchange market graph (supply and demand for currencies) is explained, along with the four main shifters: taste/preferences, income, inflation, and interest rates. Finally, it contrasts floating and fixed exchange rate systems.