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ECONOMICS & FINANCE

Economics is the study of how people, businesses, and governments produce, distribute, and use scarce resources. It focuses on how individuals and societies make choices under limited resources.

Supply and demand is the relationship between how much of a product is available (supply) and how much people want it (demand). When demand rises faster than supply, prices tend to go up, and vice versa.

A market economy is a system where prices, production, and distribution of goods are determined mainly by supply and demand rather than government control.

Capitalism is an economic system based on private ownership of businesses and resources, where profit motives and free markets drive production and pricing decisions.

Socialism is an economic system in which the government or the community collectively owns and controls major resources and industries, aiming to distribute wealth more evenly.

Opportunity cost is the value of the next best alternative you give up when you choose one option over another, such as spending money on one item instead of saving it.

Scarcity refers to the basic economic problem that resources are limited while human wants are unlimited, forcing individuals and societies to make choices.

A monopoly occurs when a single company controls an entire market for a product or service, giving it significant power over prices and supply.

Competition is when multiple businesses offer similar products or services, encouraging lower prices, better quality, and innovation to attract customers.

The "invisible hand" is a concept by economist Adam Smith describing how individuals pursuing their own self-interest in a free market can unintentionally benefit society as a whole.

Inflation is the rate at which the general price level of goods and services rises over time, reducing the purchasing power of money.

Inflation can be caused by increased demand for goods (demand-pull), rising production costs (cost-push), or an increase in the money supply.

Deflation is a decrease in the general price level of goods and services, meaning money gains purchasing power over time.

Hyperinflation is extremely rapid and out-of-control inflation, often exceeding 50% per month, that can destroy the value of a currency.

Stagflation is an economic condition combining stagnant economic growth, high unemployment, and high inflation at the same time.

The CPI measures the average change in prices paid by consumers for a basket of goods and services, and it's a key indicator used to track inflation.

Purchasing power is the amount of goods or services that a unit of currency can buy; it decreases when inflation rises.

Fiat money is currency that has value because a government declares it legal tender, not because it's backed by a physical commodity like gold.

The money supply is the total amount of currency and liquid assets circulating in an economy at a given time.

Central banks aim to control inflation to maintain price stability, protect purchasing power, and support sustainable economic growth.

The stock market is a collection of exchanges where shares of publicly traded companies are bought and sold.

A stock represents a share of ownership in a company, giving the holder a claim on part of its assets and profits.

A bond is a loan made by an investor to a borrower (typically a company or government) that pays back the principal plus interest over time.

Stocks represent ownership in a company with variable returns, while bonds are debt instruments that typically offer fixed, more predictable returns.

A dividend is a portion of a company's profits distributed to its shareholders, usually on a regular basis.

A stock index, like the S&P 500 or Dow Jones, tracks the performance of a specific group of stocks to represent overall market trends.

Diversification is an investment strategy of spreading money across different assets to reduce risk.

A bull market is a period when stock prices are rising or expected to rise, reflecting investor optimism.

A bear market is a period when stock prices fall significantly, typically by 20% or more, reflecting investor pessimism.

Compound interest is interest calculated on both the initial principal and the accumulated interest from previous periods, causing investments to grow faster over time.

Gross Domestic Product (GDP) is the total monetary value of all goods and services produced within a country during a specific period.

GDP measures production within a country's borders, while Gross National Product (GNP) measures production by a country's citizens and companies, regardless of location.

A recession is a significant decline in economic activity across an economy, typically identified by two consecutive quarters of negative GDP growth.

An economic depression is a severe, prolonged recession marked by sharp declines in GDP, high unemployment, and reduced consumer spending.

The unemployment rate measures the percentage of the labor force that is jobless and actively seeking work.

Economic growth refers to an increase in the production of goods and services in an economy over time, usually measured by rising GDP.

Per capita income is the average income earned per person in a given area, calculated by dividing total income by population.

The business cycle describes the natural rise and fall of economic activity over time, moving through phases of expansion, peak, contraction, and trough.

Fiscal policy refers to government decisions about spending and taxation used to influence the economy.

Monetary policy refers to actions by a central bank, such as adjusting interest rates or money supply, to control inflation and stabilize the economy.

An interest rate is the cost of borrowing money or the return earned on savings, usually expressed as a percentage.

Central banks raise interest rates to slow inflation and cool the economy, and lower them to encourage borrowing and stimulate growth.

A central bank is a national institution that manages a country's currency, money supply, and interest rates, such as the U.S. Federal Reserve.

The Federal Reserve is the central bank of the United States, responsible for setting monetary policy, regulating banks, and maintaining financial stability.

A credit score is a numerical rating that reflects a person's creditworthiness based on their borrowing and repayment history.

APR is the yearly cost of borrowing money, including interest and fees, expressed as a percentage.

A mortgage is a loan used to purchase real estate, where the property itself serves as collateral for the loan.

A bank run occurs when many customers withdraw their deposits simultaneously due to fears the bank may become insolvent.

Quantitative easing is a monetary policy where a central bank buys financial assets to inject money into the economy and lower interest rates.

A savings account typically earns interest and is meant for storing money, while a checking account is designed for frequent transactions like payments and withdrawals.

International trade is the exchange of goods and services between countries, allowing nations to access products they don't produce domestically.

A trade deficit occurs when a country imports more goods and services than it exports.

A trade surplus occurs when a country exports more goods and services than it imports.

A tariff is a tax imposed by a government on imported goods, often used to protect domestic industries or raise revenue.

Globalization is the process by which economies, cultures, and societies become interconnected through trade, technology, and communication worldwide.

An exchange rate is the value of one currency compared to another, determining how much of one currency you get for another.

Currency devaluation can result from inflation, trade imbalances, low interest rates, or deliberate government policy to boost exports.

A free trade agreement is a pact between countries to reduce or eliminate tariffs and trade barriers on goods and services.

Protectionism is an economic policy of restricting imports through tariffs or quotas to protect domestic industries from foreign competition.

Foreign direct investment is when an individual or company from one country invests directly in business operations in another country.

Cryptocurrency is a digital form of currency secured by cryptography, operating independently of a central bank, typically using blockchain technology.

Bitcoin is the first and largest cryptocurrency, created in 2009, designed to function as decentralized digital money.

Blockchain is a distributed digital ledger that records transactions across many computers in a way that makes them secure and difficult to alter.

Cryptocurrency mining is the process of validating transactions and adding them to a blockchain, often rewarded with newly created coins.

A stablecoin is a type of cryptocurrency designed to maintain a stable value, usually pegged to a currency like the U.S. dollar.

Decentralization means removing control from a single central authority, such as a bank or government, and distributing it across a network.

A digital wallet is software that allows users to store, send, and receive digital currencies or payment information electronically.

An NFT is a unique digital asset verified using blockchain technology, representing ownership of a specific item like art, music, or collectibles.

DeFi refers to financial services like lending, borrowing, and trading built on blockchain networks without traditional intermediaries like banks.

In most countries, cryptocurrency is not legal tender, meaning businesses aren't required to accept it, though a few countries have adopted it officially.

A budget is a plan that tracks income and expenses over a period of time to help manage spending and saving.

An emergency fund is money set aside to cover unexpected expenses, such as medical bills or job loss, typically covering 3-6 months of expenses.

Net worth is the total value of everything a person owns (assets) minus everything they owe (liabilities).

A 401(k) is a U.S. employer-sponsored retirement savings plan that allows employees to save and invest a portion of their paycheck before taxes.

Compound growth means your savings earn returns not just on the original amount but also on previously earned interest, accelerating growth over time.

The debt-to-income ratio compares a person's total monthly debt payments to their gross monthly income, used by lenders to assess borrowing risk.

A credit card APR is the annual interest rate charged on unpaid balances carried on a credit card.

Passive income is money earned regularly with minimal ongoing effort, such as from rental properties, dividends, or investments.

This rule suggests allocating 50% of income to needs, 30% to wants, and 20% to savings and debt repayment.

Saving for retirement ensures financial security later in life when regular income from work stops, allowing people to maintain their standard of living.

A corporation is a legal business entity that is separate from its owners, capable of owning assets, incurring debt, and being sued independently.

An IPO is the process by which a private company offers shares to the public for the first time to raise capital.

Market capitalization is the total value of a company's outstanding shares, calculated by multiplying share price by the number of shares.

A merger is when two companies combine to form a single new company, often to increase market share or efficiency.

An acquisition occurs when one company purchases most or all of another company's shares to gain control over it.

A startup is a young company, typically founded to develop a unique product or service and scale it quickly, often with high growth potential.

Venture capital is funding provided by investors to startups and small businesses believed to have long-term growth potential.

A monopoly is control of a market by one company, while an oligopoly is control by a small group of companies that dominate an industry.

Corporate bankruptcy is a legal process where a company that cannot pay its debts seeks relief from some or all of its financial obligations.

A shareholder is an individual or entity that owns shares of a company's stock, giving them partial ownership and sometimes voting rights.

The Great Depression (1929-1939) was triggered by the stock market crash of 1929, bank failures, reduced consumer spending, and poor monetary policy decisions.

The 2008 financial crisis was a global economic downturn caused primarily by the collapse of the U.S. housing market and risky mortgage-backed securities.

A stock market crash is a sudden and severe drop in stock prices across a significant portion of the market, often triggered by panic selling.

The gold standard was a monetary system where a country's currency value was directly linked to a fixed amount of gold.

Most countries abandoned the gold standard by the mid-20th century, with the U.S. fully ending convertibility to gold in 1971.

The Bretton Woods system, established in 1944, created a framework of fixed exchange rates tied to the U.S. dollar, which was in turn tied to gold.

An economic bubble occurs when asset prices rise far above their real value, driven by speculation, before eventually crashing.

The dot-com bubble was a rapid rise and subsequent crash in internet-based company stock prices between the late 1990s and 2001.

Economic stagnation refers to a prolonged period of little or no growth in an economy.

Economists study economic history to understand patterns behind crises, growth, and policy decisions, helping predict and prevent future economic problems.