A stock variable measures the quantity of something at a specific point in time. Stock variables are static snapshots that provide a baseline for understanding an economy's capacity and resources. Keep reading to learn more about stock variables in both traditional finance and crypto markets.

1. The money supply. The money supply represents the total amount of money in circulation within an economy at a particular time. It is crucial for analyzing liquidity conditions and formulating monetary policy.

2. Capital stock. Capital stock includes the total value of physical assets, such as buildings, machinery, and equipment, owned by firms within an economy. This variable assesses the productive capacity and potential output of an economy.

3. National debt. National debt represents the total amount of money that a government owes to creditors at a specific point in time. Monitoring national debt helps policymakers understand the fiscal health of a country and make informed decisions regarding borrowing and expenditure.

4. Inventory levels. Inventory levels indicate the quantity of goods held by firms at a particular time. This variable is critical for understanding supply chain dynamics and planning production schedules.

In the context of cryptocurrencies, important stock variables include:

1. Circulating supply. The circulating supply represents the total number of coins or tokens that are currently available and in circulation. It helps understand the scarcity of a cryptocurrency, which can influence its price and market behavior.

2. Total Value Locked (TVL). TVL in decentralized finance (DeFi) represents the total amount of assets currently staked or locked in various DeFi protocols. It assesses the health and popularity of DeFi applications.

Learn more: How Does the Economy Work?