- Austrian Economics
- A school of economic thought emphasizing free markets, sound money, and minimal government intervention. Austrian economists view inflation as an expansion of the money supply that transfers wealth from savers to those closest to the money printer.
- Bitcoin
- A decentralized digital currency with a fixed supply of 21 million coins. It combines the scarcity of gold with the convenience of digital money. No central authority controls it.
- Cantillon Effect
- The observation that newly created money doesn't enter the economy evenly. It benefits those who receive it first (banks, governments, large institutions) while diluting the purchasing power of those who receive it last (ordinary workers and savers).
- Consumer Price Index (CPI)
- The government's primary measure of inflation, tracking price changes in a basket of goods and services. Critics argue its methodology has been adjusted over decades to understate actual inflation experienced by consumers.
- Deflation
- A decrease in the general price level, meaning your money buys more over time. This happens naturally when productivity increases faster than the money supply.
- Double Coincidence of Wants
- The problem in barter where both parties must want exactly what the other has at the same time and place. Money solves this by acting as a universal intermediary.
- Federal Reserve
- The central bank of the United States, created in 1913. It controls the money supply and sets interest rates. Its ability to create new dollars is the mechanism through which inflation occurs.
- Fiat Currency
- Government-issued money that isn't backed by a physical commodity like gold. Its value comes from government decree and public trust. The US dollar, euro, and yen are all fiat currencies.
- Geometric Weighting
- A mathematical formula used in CPI calculations since 1999 that assigns more weight to cheaper items in a category, producing lower inflation readings than the older arithmetic method. Each methodological update has consistently pushed the official inflation number down.
- Gold
- A precious metal that served as the world's primary money for thousands of years due to its scarcity, durability, and difficulty to counterfeit. The US dollar was backed by gold until 1971.
- Halving
- A hardcoded event in Bitcoin's protocol, occurring roughly every four years, that cuts the rate of new bitcoin issuance in half. Halvings are the mechanism that drives Bitcoin's increasing scarcity over time. The next halving is scheduled for April 2028.
- Hedonic Adjustments
- A CPI method where product quality improvements are counted as price decreases, even when the actual dollar price went up. If a laptop gets a faster processor, the BLS may count it as cheaper. Critics argue this consistently understates inflation because consumers pay the higher price regardless of whether they wanted the upgrade.
- Inflation
- The expansion of the money supply, which results in each unit of currency buying less over time. Commonly described as "rising prices," but more accurately understood as the currency losing purchasing power.
- Keynesian Economics
- A school of economic thought advocating for government intervention, central bank management of the money supply, and moderate inflation as tools for economic stability. Named after economist John Maynard Keynes.
- M2 Money Supply
- A measure of the total amount of money in circulation, including cash, checking deposits, savings accounts, and money market accounts. Used as a key indicator of how much money exists in the economy.
- Medium of Exchange
- One of the three functions of money. Something widely accepted in trade so people don't have to barter directly. The dollar serves this role today; Bitcoin is increasingly doing so.
- Money
- A tool that solves the barter problem by serving as a medium of exchange, store of value, and unit of account. Good money is scarce, durable, divisible, portable, and widely accepted.
- Money Supply
- The total amount of money in circulation in an economy. When the money supply grows faster than the production of goods and services, inflation results.
- Nominal Returns
- Investment returns measured in raw dollar terms, with no adjustment for inflation. The number on the statement gets bigger every year, but the ruler used to measure it shrinks. Nominal returns flatter the chart and obscure whether your purchasing power actually grew.
- Purchasing Power
- The amount of goods or services a unit of currency can buy. When inflation occurs, purchasing power decreases, and each dollar buys less than it used to.
- Real Returns
- Investment returns adjusted for inflation. They show how much your purchasing power actually grew, not just how much the dollar figure went up. Real returns answer the question that matters: can you buy more with what you have than you could before?
- Stock-to-Flow Ratio
- A measure of scarcity: the existing supply (stock) divided by the amount produced each year (flow). A high stock-to-flow means new supply is small relative to what already exists, making the asset hard to debase. Gold's stock-to-flow sits around 60; Bitcoin's, after the April 2024 halving, is above 120 and doubles again in 2028.
- Store of Value
- One of the three functions of money. Something that maintains its purchasing power over time. Gold is a strong store of value; fiat currencies are weak stores of value due to inflation.
- Substitution Effects
- A CPI method that assumes consumers switch to cheaper alternatives when prices rise: beef gets expensive, so they buy chicken. Instead of tracking what things actually cost, it tracks what a cost-flexible consumer would spend, consistently producing lower inflation readings than actual prices would show.
- Truflation
- A decentralized, real-time inflation index that tracks over 15 million items using actual retail, housing, and economic data. Provides an alternative measurement to government-reported CPI.
- Unit of Account
- One of the three functions of money. A standard measurement for pricing goods and services. The dollar is the dominant unit of account in the US.