Economic Factors for the SIE: The Business Cycle, the Fed, and Fiscal Policy

Open almost any SIE study guide and you’ll find the Federal Reserve’s three tools of monetary policy: open market operations, the discount rate, and the reserve requirement.

The reserve requirement has been zero since March 26, 2020. Not lowered. Eliminated, for every depository institution in the country. The Fed confirmed in a November 2025 Federal Register notice that ratios “will remain zero” through 2026.

That’s six years of prep material teaching a tool that isn’t being used. Worse, it obscures how the Fed actually steers rates now — which is through administered rates like the interest it pays banks on their reserve balances.

You still need to know reserve requirements for the exam, because FINRA’s outline covers the Fed’s toolkit as a concept. But you should know what’s real, because it makes the rest of the topic make sense.

The short answer

The business cycle has four phases: expansion, peak, contraction, trough. A recession is commonly defined as two consecutive quarters of declining GDP.

Monetary policy is the Fed’s job — managing the money supply and interest rates.

Fiscal policy is Congress and the President’s job — taxation and government spending.

That split is the single most-tested thing here. The Fed cannot cut your taxes. Congress cannot set the federal funds rate.

The Fed’s tools:

Tool	Status
Open market operations	Active. Buying and selling Treasuries
Discount rate	Active. What the Fed charges banks borrowing directly
Interest on reserve balances (IORB)	Active. The primary rate-steering tool since 2020
Reserve requirement	Zero since March 26, 2020

Key rates:

• Discount rate — the Fed charges banks
• Federal funds rate — banks charge each other overnight
• Prime rate — banks charge their best corporate customers
• Broker call loan rate — banks charge broker-dealers financing margin accounts

The full answer

The business cycle

Four phases, repeating:

Phase	What’s happening
Expansion	GDP rising, employment rising, consumer spending up, inventories falling
Peak	Growth tops out. Capacity constraints, inflationary pressure
Contraction	GDP falling, unemployment rising, spending down, inventories building
Trough	The bottom. Activity stabilises before recovery begins

A recession is commonly defined as two consecutive quarters of declining GDP. A depression is a prolonged and severe contraction, often described as lasting six consecutive quarters or more.

Two terms that get confused: deflation is falling prices. Disinflation is prices still rising, but more slowly. Stagflation is the awkward combination of stagnant growth and high inflation — awkward because the standard policy responses work against each other.

Economic indicators

The exam loves asking you to classify an indicator. Three categories:

Leading — move before the economy does. Predictive.

• Stock market performance
• Building permits and housing starts
• New orders for durable goods
• Initial jobless claims
• Consumer expectations
• Money supply (M2)
• The yield curve spread
• Average weekly manufacturing hours

Coincident — move with the economy. Descriptive of now.

• GDP
• Industrial production
• Personal income
• Nonfarm payrolls
• Manufacturing and trade sales

Lagging — move after the economy does. Confirmatory.

• Unemployment rate and duration of unemployment
• Corporate profits
• CPI and inflation measures
• The prime rate
• Inventories-to-sales ratio
• Consumer credit outstanding

The trap: initial jobless claims are leading, but the unemployment rate is lagging. New claims react instantly when firms cut staff; the overall rate takes months to reflect it. Two employment measures, opposite categories.

Monetary policy: what the Fed does

The Fed manages the money supply and short-term interest rates. Its policy-setting body is the FOMC — the Federal Open Market Committee.

Open market operations are the workhorse. The Fed buys and sells government securities in the open market:

• Buying securities puts money into the banking system. Money supply up, rates down. Expansionary.
• Selling securities takes money out. Money supply down, rates up. Restrictive.

The discount rate is what the Fed charges banks that borrow directly from it at the discount window. The Fed sets this rate directly, and it functions as a penalty rate above the federal funds target range — the discount window is a backstop, not a cheap funding source.

Interest on reserve balances (IORB) is the tool most study material omits entirely, and it’s now the primary one. The Fed pays banks interest on the reserves they hold with it. No bank will lend to another bank below what the Fed pays risk-free, so IORB puts a floor under short-term rates. The Fed pairs it with overnight reverse repurchase agreements (ON RRP) to extend that floor to money market funds and others without Fed accounts.

Reserve requirements used to be the third leg. Banks had to hold a percentage of deposits rather than lend them, and adjusting the percentage changed how much money the banking system could create.

That mechanism required reserves to be scarce. After 2008, quantitative easing flooded the system with reserves, and scarcity disappeared. In January 2019 the FOMC announced it would implement policy in an ample reserves regime, and on March 15, 2020 the Board reduced reserve requirement ratios to zero, effective March 26, 2020.

The legal framework under Regulation D remains intact — the Board could reimpose ratios. As of 2026 it has given no indication it intends to.

How to handle this on the exam: if a question asks you to name the Fed’s tools of monetary policy, reserve requirements belong on the list. FINRA’s outline treats them as part of the toolkit, and the mechanism is still worth understanding. Just don’t carry away the belief that the Fed is adjusting them.

Fiscal policy: what the government does

Fiscal policy is taxation and government spending, controlled by Congress and the President. It has nothing to do with the Fed.

• Expansionary fiscal policy — cut taxes, increase spending. Stimulates demand, typically used in a contraction.
• Contractionary fiscal policy — raise taxes, cut spending. Cools an overheating economy.

	Monetary	Fiscal
Who	The Federal Reserve	Congress and the President
Levers	Money supply, interest rates	Taxes, government spending
Speed	Fast — the FOMC can act at a meeting	Slow — requires legislation
Precision	Broad, blunt	Can be targeted at sectors or groups

If a question describes changing tax rates, that’s fiscal, and the Fed has no role. If it describes buying Treasuries or moving the discount rate, that’s monetary, and Congress has no role.

The four rates

Rate	Who charges whom	Set by
Federal funds	Bank to bank, overnight	Market-determined within the FOMC’s target range
Discount	Fed to banks, at the discount window	The Fed, directly
Broker call loan	Banks to broker-dealers financing margin	Market
Prime	Banks to their most creditworthy corporate customers	Individual banks

The nuance most guides miss: the FOMC does not set the federal funds rate. It sets a target range, and the actual rate is determined in the interbank market — which is exactly what the administered rates above are designed to steer.

The prime rate is the highest of the four and the stickiest, moving in steps rather than continuously. The federal funds rate is typically the lowest.

Inflation and the money supply

CPI — the Consumer Price Index — is the headline inflation measure, tracking a basket of consumer goods and services.

Purchasing power risk is the investor-facing consequence: your returns fail to keep pace with rising prices, so the money buys less than it did. It’s a systematic risk — diversification doesn’t help.

Money supply measures:

• M1 — currency in circulation, demand deposits, other checkable deposits
• M2 — M1 plus savings deposits, small time deposits, and retail money market funds

M2 is a leading indicator. The Fed discontinued M3 in 2006.

The yield curve

A plot of yields across maturities for the same credit quality, usually Treasuries.

Shape	What it means
Normal — upward sloping	Longer maturities yield more. Investors demand compensation for time and uncertainty. The usual state
Flat	Little difference across maturities. Often a transition
Inverted — downward sloping	Short-term yields exceed long-term. Historically a recession signal

An inversion says the market expects rates to fall, which usually means it expects economic weakness. It’s one of the more reliable leading indicators, which is why it appears on the leading list above.

Why any of this matters to a securities rep

The economic material can feel disconnected from the rest of the exam. It isn’t.

Interest rate risk — the systematic risk that hits every bond when rates rise — is the direct consequence of the policy decisions above. Reinvestment risk is what happens when a bond matures into a lower-rate environment created by an easing Fed. Purchasing power risk is inflation viewed from a portfolio.

The economics section isn’t background. It’s the cause, and the products-and-risks section is the effect.

Common misconceptions

“The Fed has three tools, including reserve requirements.” Reserve requirements have been zero since March 26, 2020, and the Fed now steers rates primarily through interest on reserve balances. Know the concept for the exam; don’t believe it’s in active use.

“The Fed sets the federal funds rate.” The FOMC sets a target range. The actual rate is market-determined within it.

“The Fed sets fiscal policy.” The Fed does monetary policy only. Taxes and spending belong to Congress and the President.

“The unemployment rate is a leading indicator.” It’s lagging. Initial jobless claims are leading. Two employment measures, opposite categories.

“Deflation and disinflation are the same.” Deflation is falling prices. Disinflation is prices rising more slowly.

“When the Fed buys securities, it’s tightening.” Buying injects money — that’s easing. Selling drains money and tightens.

“An inverted yield curve means rates are high.” It means short-term yields exceed long-term ones, which signals an expectation that rates will fall.

“The discount rate is what banks charge each other.” That’s the federal funds rate. The discount rate is what the Fed charges banks.

What to do with this info

1. Sort every policy question by actor first. Fed means monetary. Congress or the President means fiscal. That one filter resolves most questions in this section.
2. Drill the indicator categories, especially the jobless-claims-versus-unemployment-rate pair. Classification questions are common and fast to answer once the lists are memorised.
3. Learn the direction of open market operations. Fed buys means money in, rates down. Fed sells means money out, rates up. Reversing this is the single most common error here.
4. Keep the four rates straight by who charges whom, not by their levels, which move.
5. Answer reserve-requirement questions as the exam intends, while understanding that the real mechanism is now IORB. Knowing both is strictly better than knowing either.
6. Tie this back to risk. Interest rate, reinvestment, and purchasing power risk all originate here, and that’s the 44% domain.

Related resources

• Systematic vs unsystematic risk — interest rate, reinvestment and purchasing power risk are the portfolio-level consequences of everything above
• The SIE exam glossary — 170 terms in plain English, including the economic vocabulary
• Every number and formula on the SIE — the bond price and yield relationships driven by rate policy
• Exempt securities vs exempt transactions — where government and municipal securities sit in the regulatory picture
• How to read SIE exam questions — spotting the actor cue in a policy scenario
• Money market instruments — commercial paper, bankers’ acceptances, negotiable CDs and repos, and the 270-day rule
• Free SIE practice exam — a domain-scored diagnostic