Principles of Microeconomics: Trade, Goods, Consumer Theory, and Cost of Production

Comprehensive vocabulary flashcards covering comparative advantage, international trade models, public and private goods, consumer theory, and firm production costs from Principles of Microeconomics.

Absolute Advantage

The ability to produce a good at a lower cost and using fewer inputs than other producers.

Comparative Advantage

The ability to produce a good at a lower opportunity cost than another producer.

Imports

Goods and services purchased from other countries.

Exports

Goods and services sold to other countries.

Quotas

A legal limit or cap on the physical volume of imported goods that can enter a country.

Tariff

A tax placed directly on imported goods.

Autarky

An economic state in which a country does not partake in international trade.

Globalization

The widespread phenomenon of growing economic linkages and integration across countries.

Ricardian Model of International Trade

A model stating that countries specialize in and export goods in which they hold a comparative advantage, allowing both countries to increase overall consumption possibilities through higher wages and lower prices.

Factor Endowments

The total amount of resources a country possesses and can utilize to produce goods and services, including land, natural resources, labor, machinery, and entrepreneurship.

Heckscher-Ohlin Model

A trade model positing that a country with an abundant supply of a particular factor endowment will have a comparative advantage in, and export, goods that intensively use that resource, while importing goods that use scarce domestic resources.

Gross Domestic Product (GDP)

The total market value of all final goods produced in a country during a specific year, composed of consumption, investment, government spending, and net exports.

Excludability

The property of a good whereby people can be prevented from using it.

Rivalry in Consumption

The property of a good where one person's consumption diminishes another person's ability to consume it.

Classification Matrix of Goods

A 2x2 framework classifying goods into four distinct categories (Private Goods, Common Resources, Club Goods, and Public Goods) based on whether they are excludable and whether they are rival in consumption.

Private Goods

Goods that are both excludable and rival in consumption, characterized by private market decisions and efficient quantity generation at the market-clearing price (e.g., concert tickets, cola).

Common Resources

Goods that are rival in consumption but non-excludable, such as grazing fields for animals, livestock, and fish stocks.

Tragedy of the Commons

An economic scenario where common resources face overconsumption and depletion because they are freely available to everyone and individuals act primarily for their own short-run benefit.

Club Goods

Goods that are excludable but non-rival in consumption, where costs are determined privately and sellers are not directly tied to how many users consume the good (often characterized by natural monopoly).

Public Goods

Goods that are non-excludable and non-rival in consumption, to which a market price cannot easily be attached and which are always accessed for free.

Free-Rider Issue

A market failure occurring when consumers benefit from a non-excludable good without paying for it, leading to inadequate revenue to maintain the good and prompting government intervention through taxation.

Budget Constraint

The limit representing the affordable consumption bundles a consumer can buy given their fixed income and the prevailing prices of goods.

Consumption Set

The collection of all possible consumption bundles that a consumer can purchase within their budget constraint.

Relative Price

The ratio between the prices of two goods, reflecting the opportunity cost of one good in terms of the other along the budget constraint.

Completeness

A consumer preference rule stating that given any two consumption bundles, a consumer will always strictly prefer one bundle over the other or be indifferent between them.

Transitivity

A consumer preference rule establishing that if bundle $A$ is preferred to bundle $B$ ($A > B$) and bundle $B$ is preferred to bundle $C$ ($B > C$), then bundle $A$ must be preferred to bundle $C$ ($A > C$).

Non-Satiation

The preference property assuming that more of a good is always preferred to less, meaning if bundle $A$ has more of every good than bundle $B$, then $A > B$.

Utility

The overall level of satisfaction or well-being a consumer derives from consuming a given bundle of goods, formalized through a utility function.

Indifference Curve

A curve showing different consumption bundles that yield the identical level of utility to the consumer.

Marginal Rate of Substitution (MRS)

The rate at which a consumer is willing to trade one good for another while maintaining the same total utility, represented geometrically by the slope of an indifference curve.

Income Effect

The change in consumption that results when a price change shifts the consumer's purchasing power, moving them to a higher or lower indifference curve.

Substitution Effect

The change in consumption caused by a change in the relative price of two goods, resulting in movement along the same indifference curve toward the relatively cheaper good.

Giffen Good

A good for which an increase in price causes quantity demanded to rise, occurring when the income effect outweighs the substitution effect.

Optimal Consumption Bundle

The affordable bundle on the budget constraint that maximizes total utility, found where the indifference curve is tangent to the budget line ($\text{MRS} = \text{relative price}$).

Explicit Costs

Business input costs that require an actual direct monetary outlay by the firm.

Implicit Costs

Opportunity costs of production that do not require an out-of-pocket monetary outlay by the firm.

Accounting Profit

Total revenue minus explicit costs ($\text{Accounting Profit} = \text{TR} - \text{Explicit Costs}$).

Economic Profit

Total revenue minus total opportunity cost, incorporating both explicit and implicit costs ($\text{Economic Profit} = \text{TR} - \text{TC}$).

Production Function

The relationship showing the physical volume of output produced from different quantities of inputs used in the production process.

Diminishing Marginal Product

The economic property whereby the marginal product of an input declines as the quantity of the input increases, causing the production function to flatten.

Coffee Shop Cost Schedule

A tabulated cost schedule tracking fixed costs ($FC = \$3.00$), variable costs, total costs, average costs, and marginal costs for output ranging from 0 to 10 cups of coffee per hour.

Total Cost Curve

A graphical representation plotting total production costs against quantity of output, which becomes progressively steeper due to diminishing marginal product.

Marginal Cost (MC)

The increase in total cost resulting from producing an additional unit of output ($\text{MC} = \frac{\Delta \text{TC}}{\Delta Q}$).

Average Total Cost (ATC)

Total cost divided by the quantity of output produced ($\text{ATC} = \frac{\text{TC}}{Q} = \text{AFC} + \text{AVC}$), generating a characteristic $U$-shaped cost curve.

Efficient Scale

The output quantity that minimizes average total cost, located at the vertex of the $U$-shaped ATC curve where $\text{MC} = \text{ATC}$.

Economies of Scale

The long-run cost condition wherein average total cost decreases as the quantity of output increases.

Diseconomies of Scale

The long-run cost condition wherein average total cost rises as the quantity of output increases.

Marginal Revenue (MR)

The increase in total revenue received by a firm for selling one additional unit of output.

Profit-Maximizing Rule

The principle stating that a firm maximizes profit by selecting the output quantity where marginal revenue equals marginal cost ($\text{MR} = \text{MC}$).