Comprehensive Study Guide: Macroeconomics, Trade, and Global Finance

Macroeconomic Stabilization and Countercyclical Policy

• Countercyclical Monetary Policy Analysis:     * Investment Spending Decline: If investment spending falls and the Federal Open Market Committee (FOMC) responds with countercyclical monetary policy, the policy is likely to cause the credit supply to shift up (increase). This is intended to lower borrowing costs and stimulate economic activity, potentially leading to long-run inflation if not managed properly.     * Fiscal Policy Interference: When investment spending falls and the federal government uses transfers to stabilize Aggregate Expenditures, this policy is likely to cause credit demand to shift up. This occurs because the government must borrow to fund these transfers, leading to higher borrowing costs and the "crowding out" of private investment.     * The Role of Uncertainty: Economic uncertainty, such as that caused by a trade war, makes expansionary monetary policy less effective. This is because commercial banks are likely to hold a larger fraction of every deposit in reserve (increasing excess reserves) rather than lending it out.

• Policy Tools and recessionary Responses:     * Monetary Policy Mechanics: The central bank conducts countercyclical monetary policies by manipulating interest rates and bank reserves.     * Fiscal Policy Mechanics: Countercyclical fiscal policy is conducted by the government by acting to change taxes and government expenditures.     * Stimulus during Recession:         * The Fed can take direct action to stimulate the economy by lowering short-term interest rates ($i$).         * Expansionary fiscal policy involves higher government spending ($G$) and lower taxes ($T$) to increase aggregate economic activity.         * Contractionary fiscal policy involves lower government spending and higher taxes to decrease economic activity (often used to cool an overheating economy).     * Automatic vs. Discretionary Stabilizers:         * Automatic Stabilizer Example: A decrease in tax revenue due to an increase in unemployment during a recession happens without new legislation.         * Discretionary Fiscal Policy Example: A temporary tax cut specifically passed to boost consumption during a downturn.

Open Market Operations and Labor Market Dynamics

• Open Market Purchases (Recession Prevention):     * When the Fed conducts an open market purchase, it shifts the supply of reserves to the right.     * Casual Chain: Short-term interest rates fall $\rightarrow$ Long-term interest rates fall $\rightarrow$ Demand for goods and services increases $\rightarrow$ Labor demand shifts right.

• Open Market Sales (Inflation Prevention):     * When the Fed conducts an open market sale, it shifts the supply of reserves to the left.     * Casual Chain: Short-term interest rates rise $\rightarrow$ Long-term interest rates rise $\rightarrow$ Demand for goods and services decreases $\rightarrow$ Labor demand shifts left.

• Labor Market Equilibrium during Booms:     * A technological breakthrough shifts the labor demand curve from $LD_1$ to $LD_2$, moving the economy to a new equilibrium $E_2$.     * Policymakers may implement growth-reducing contractionary policies during a boom to:         * Bring the inflation rate down to the target level.         * Cool off the economy before it overheats.         * Prevent unsustainable economic expansions from leading to a severe subsequent downturn.     * Note: Bringing the unemployment rate down is typically an expansionary goal, not a reason for contractionary policy.

Manufacturing Industry Trends

• 1980 to the Great Recession: Manufacturing output rose dramatically, while manufacturing employment fell dramatically. This indicates massive gains in productivity and automation.

• Recovery from the Great Recession: Output and employment have moved in opposite directions, characterized by output increasing while employment continues to decrease.

• Stagflation: A economic situation defined by low growth or recession combined with high inflation.

International Trade and Comparative Advantage

• Opportunity Cost and Specialization Scenarios:     * Case Study: Mark can produce $3$ tables or $1$ chair per day. John can produce $4$ tables or $1$ chair per day.         * Mark's opportunity cost of making a table is $\frac{1}{3}$ ($0.33$) of a chair.         * Mark's opportunity cost of making a chair is $3$ tables.         * John's opportunity cost of making a table is $\frac{1}{4}$ ($0.25$) of a chair.         * John's opportunity cost of making a chair is $4$ tables.     * Comparative Advantage: A country or individual specializes in goods they can produce at a lower opportunity cost. If Asgard specializes in armor based on comparative advantage, production of armor in Asgard will increase.

• Gains and Risks of Trade:     * Dynamic Gains: Include increased innovation due to competition, lower costs/prices via economies of scale for exporters, and technology transfer to import-competing sectors.     * Tariffs:         * May be welfare-improving if they protect industries generating positive national security externalities.         * If a tariff is imposed on steel, domestic producers face less foreign competition and earn higher profits, but domestic consumers are worse off due to higher prices.         * Lowering import tariffs leads to a fall in government revenue and lower prices for imported goods.

• World Trade Organization (WTO) Rules:     * Market Power: It is false that a large country is allowed to force better trading terms from a small country; this violates the "most favored nation" rules.     * Countervailing Tariffs: Country A is allowed to impose these if a WTO court finds a Country B trade barrier of equal value exists against Country A.

The US Federal Budget and Social Security

• Government Spending Categories:     * Discretionary Spending: Example includes defense spending, which is authorized by Congress annually.     * Mandatory/Entitlement Spending: Includes Social Security and Medicare, which are authorized by prior law rather than annual appropriations.     * Spending Proportions:         * Health care expenditures represent the biggest share of US government spending.         * Interest payments on federal debt make up the smallest share (among the provided options of income subsidies, defense, and health care).

• Federal Revenue and Social Security:     * Individual income tax is the largest single component of federal revenue.     * "Pay as you go" System: This means Social Security benefits are paid for by current tax collection from people of working age, rather than personal savings accounts.

Global Finance and Exchange Rates

• Trade Accounts:     * Trade Deficit: Occurs when a country imports more than it exports (e.g., importing $\$40\,\text{billion}$ and exporting $\$37.8\,\text{billion}$ results in a trade deficit).     * Trade Surplus: Occurs when exports exceed imports (e.g., importing $\$16\,\text{billion}$ and exporting $\$18.2\,\text{billion}$ creates a $\$2.2\,\text{billion}$ surplus).     * Current Account Formula: $Current\,Account = Net\,exports + Net\,factor\,payments\,from\,abroad + Net\,transfers\,from\,abroad$.

• Capital Flows and Interest Rates:     * As the real interest rate ($r$) increases, net capital outflows decrease (foreigners want to invest in the country) and net exports typically decrease as the currency appreciates.

• Exchange Rate Appreciation (May 2016 to May 2017 Data):     * British Pound: $0.6891 \rightarrow 0.7673$ (USD appreciated)     * Euro: $0.8922 \rightarrow 0.8924$ (USD appreciated)     * Yen: $110.564 \rightarrow 111.219$ (USD appreciated)     * Yuan: $6.554 \rightarrow 6.885$ (USD appreciated; Yuan depreciated)

• Currency Pegging and Valuation:     * To keep a currency overvalued: The country must buy the domestic currency and sell foreign currency (using reserves).     * To keep a currency undervalued: The country must buy foreign currency and sell domestic currency.     * Maintaining a Peg: If the US FOMC raises the federal funds rate, a country pegged to the dollar must maintain the peg by either the Treasury selling dollar reserves or the Central Bank selling bonds on the secondary market to raise domestic rates.

• Purchasing Power and Pricing:     * Calculation: If a Japanese toy costs $20\,\text{yen}$ and the exchange rate is $5\,\text{yen/dollar}$, the dollar price is $\frac{20}{5} = \$4$.     * Arbitrage: If the ratio of the dollar price of a US toy to the dollar price of the same toy in China is greater than 1, US toys are more expensive; retailers should buy from Chinese suppliers.

• Policy Impacts on Currency:     * Expansionary Monetary Policy: Leads to lower real interest rates $\rightarrow$ currency depreciates $\rightarrow$ net exports increase.     * Contractionary Monetary Policy: Leads to higher real interest rates $\rightarrow$ currency appreciates $\rightarrow$ net exports decrease.     * Expansionary Fiscal Policy: Likely to cause the domestic currency to appreciate.     * Real Exchange Rate: Depreciation of the real exchange rate increases net exports and increases GDP.

Questions & Discussion: Central Bank Intervention

• Question: Suppose a monetary authority holds its exchange rate below equilibrium by issuing domestic currency to buy $\$10\,\text{billion}$ of USD per month. If the country has $\$100\,\text{billion}$ in reserves, how long can this last?     * Response: Indefinitely. Because the central bank is issuing its own domestic currency (which it can print) to buy the foreign currency, it is not limited by its existing foreign reserves.

• Question: Can an investor profit from the above situation (undervalued currency)?     * Response: No, because future exchange rates are inherently difficult to predict and the bank can sustain this indefinitely.

• Question: Suppose a authority holds the exchange rate above equilibrium (overvalued) by using $\$10\,\text{billion}$ of foreign reserves monthly to buy domestic currency. If they have $\$100\,\text{billion}$ in reserves, how long can this last?     * Response: 10 months. They will eventually run out of the $\$100\,\text{billion}$ foreign reserve buffer.

• Question: How can an investor profit from an overvalued currency peg that is bound to fail?     * Response: They can sell the domestic currency before the inevitable devaluation and buy it back afterward at the cheaper price.