Agricultural Economics and Marketing Flashcards

Vocabulary-style flashcards based on the lecture notes transcript for Agricultural Economics and Marketing, covering basic terms, theories of production and cost, market equilibrium, and macroeconomic indicators.

Economics

The study of how people choose to use scarce or limited productive resources to produce various commodities and distribute them to various members of society.

Oikonomia

The Greek origin of the word economics, which literally means household management.

Macroeconomics

A branch of economics that deals with the whole or aggregate economy, focusing on variables like GNP, GDP, inflation, and unemployment.

Microeconomics

A branch of economics that deals with individuals—households, firms, markets, consumers, and producers.

Positive Economics

A type of economic analysis that makes unbiased statements on what is or what will happen based on cause and effect.

Normative Economics

A type of economic analysis that makes biased statements on what should be, using value judgments in formulating policies.

Economic Model

The basic building block in the logic of the economist, providing a conceptualization based on assumptions of how economic activity occurs.

Agricultural Economics

The application of economic principles to crop and animal production, dealing with the allocation of scarce resources for production, processing, and distribution.

Production Possibilities Frontier (PPF)

A tool illustrating all possible combinations of the maximum amounts of two goods and services produced with a given amount of resources.

Ceteris paribus

A Latin phrase meaning other things being equal.

Opportunity Cost

The value given to the best forgone alternative.

Diminishing Returns

A concept indicating that increasing the amount of an economic variable, ceteris paribus, will eventually lead to additional impact increasing at a decreasing rate.

Marginality

An additional or incremental unit of something.

Economic Resource

Productive inputs that are scarce and command a non-zero price, such as land, labor, and capital.

Full Employment

An economic goal where all available resources should be employed or no workers should be involuntarily out of work.

Equity

An economic goal aimed at achieving an equitable distribution of wealth and income.

Efficiency

Producing any given level of output at the minimum opportunity cost of the inputs used in production.

Economic Security

Assurance of the fulfillment of economic needs for every member of society, including the handicapped.

Scarcity

Along with self-interest and choice, one of the three foundations of economics.

Capitalism

Also called a market economy; characterized by the absence of a central plan, private ownership, and the profit motive.

Communism

Also called a command economy; government determines the aims of the economy, owns factors of production, and eliminates private income sources.

Socialism

A mixed economic system featuring a public sector for collective objectives and a private sector of small producing units.

Fascism

An economic system associated with a strong one-man or junta dictatorship where large companies are linked to state power.

Feudalism

An agrarian economic system where control of land and class roles between landholders and peasants are strictly structured.

Adam Smith

Known as the father of modern economics; he advocated the laissez-faire policy in his 1776 book Wealth of Nations.

Laissez-faire

A policy meaning left-alone, stating the government should not interfere with business and commerce.

David Ricardo

Proposed the labor theory of value and elaborated on taxation and international trade in Principles of Political Economy and Taxation.

Thomas Malthus

An English economist and demographer who connected economic system problems to rapid population growth.

Alfred Marshall

Author of Principles of Economics who emphasized that price and output are determined by supply and demand.

John Maynard Keynes

The father of macroeconomics who published General Theory of Employment, Interest, and Money in the 1930s.

Karl Marx

Author of Das Kapital who attempted to examine the movement of capitalist production and predicted its collapse.

Enterprise

Refers to a single production activity, such as a farmer producing rice.

Production Function

The technical relationship between the quantity of inputs used to produce a good and the quantity of output of that good.

Fixed Inputs

Inputs whose use rate does not change as the output level changes, such as land.

Variable Inputs

Inputs whose use rate changes as the output level changes, such as labor, seeds, or fertilizer.

Total Product (Q)

The total amount of output produced in physical units.

Marginal Product (MP)

The rate of change in output as an input is changed by one unit, holding all other inputs constant, calculated as $MP_I = \frac{\Delta Q_I}{\Delta I}$.

Law of Diminishing Returns

States that as successive units of variable inputs work with a fixed input, the additional product produced per unit eventually decreases.

Average Product (AP)

Measures total output per unit of input used to express productivity and efficiency, calculated as $AP_I = \frac{Q_1}{I}$.

Stage I of Production

The stage where all product curves are increasing, ending where the Average Product reaches its maximum point.

Stage II of Production

The stage where Average Product begins to decrease and Total Product continues to increase till Marginal Product is zero.

Stage III of Production

The stage beginning where Marginal Product is zero and turns negative, causing Total Product to decrease.

Long Run

A period where all inputs to the production function can be treated as variable.

Short Run

A period where some inputs are treated as fixed and management evaluates combining variable resources with fixed ones.

Constant Returns to Scale

Output increases by the same proportion as all inputs are increased.

Increasing Returns to Scale

Output increases by a greater proportion than the proportionate increase in all inputs.

Decreasing Returns to Scale

Output increases by a lesser proportion than the proportionate increase in all inputs.

Profit

The difference between total revenue and total cost.

Total Revenue (TR)

The gross income from selling a product, calculated as $TR = P \times Q$.

Accounting Profit

Total revenue minus total explicit costs, ignoring implicit costs.

Economic Profit

Total revenue minus total costs, including both explicit and implicit costs.

Land

A factor of production representing everything above and beneath the land surface; its payment is rent.

Labor

Physical and mental effort exerted in production; its payment is wages.

Capital

Finished products like machinery used to produce other goods and services; its payment is interest.

Entrepreneur

The one who organizes the other resources of land, labor, and capital; payment is profit.

Explicit Costs

Costs that require a cash outlay, such as paying wages to workers.

Implicit Costs

Costs that do not require cash outlay, such as the opportunity cost of the owner's time.

Total Fixed Cost (TFC)

Also called sunk cost or overhead cost, it does not change with output level.

Total Variable Cost (TVC)

Cost that changes as the amount of output changes, starting from the origin in a graph.

Average Fixed Cost (AFC)

Measures total fixed cost per unit of output used, calculated as $AFC = \frac{TFC}{Q}$.

Marginal Cost (MC)

The rate of change in cost as output is changed by one unit, recorded as $MC = \frac{\Delta TC}{\Delta Q}$.

Average Cost (AC)

The total cost per unit of output used, calculated as $AC = \frac{TC}{Q}$.

Average Variable Cost (AVC)

Measures the total variable cost per unit of output used, calculated as $AVC = \frac{TVC}{Q}$.

Perfectly Competitive Market

A market model with numerous price-takers, homogeneous products, free entry/exit, and perfect information.

Marginal Revenue (MR)

The additional revenue from selling one more unit, calculated as $MR = \frac{\Delta TR}{\Delta Q}$.

Average Revenue (AR)

Total revenue divided by the quantity of output sold, calculated as $AR = \frac{TR}{Q}$.

Break-even point

A condition in a competitive market where Price equals Marginal Revenue and minimum Average Cost ($P = MR = \text{min AC}$).

Shut-down point

A condition in a competitive market where Price equals Marginal Revenue and minimum Average Variable Cost ($P = MR = \text{min AVC}$).

Demand (D)

The amounts of a good consumers are willing and able to purchase at alternative prices, ceteris paribus.

Quantity Demanded (Qd)

How much of a good a buyer is willing to purchase at a single specified price in a given market.

Law of Demand

The negative or inverse relationship between Quantity Demanded and Price, ceteris paribus.

Substitution Effect

When the price of good A increases, the consumer substitutes good B because its relative price has decreased.

Income Effect

When the price of a good increases, the real income or purchasing power falls, causing less consumption.

Quantity Supplied (Qs)

How much of a good a seller is willing to offer at a single specified price in a given market.

Law of Supply

The positive relationship between Quantity Supplied and Price, ceteris paribus.

Market Equilibrium

The point where the amounts producers want to supply exactly match the amounts consumers want to buy ($Qs = Qd$).

Surplus

Also called excess supply, it occurs when the current price is above the equilibrium price ($P^*$).

Shortage

Also called excess demand, it occurs when the current price is below the equilibrium price ($P^*$).

Elasticity

A measure of responsiveness of quantity demanded or supplied to changes in price or income.

Price Elasticity of Demand (εd)

Measures the percentage change in quantity demanded resulting from a $1\%$ change in price.

Perfectly Inelastic Demand

Condition where the quantity demanded does not change as price changes, occurring when $|\epsilon| = 0$.

Unit Elastic

Condition where the percentage change in quantity is exactly equal to the percentage change in price, occurring when $|\epsilon| = 1$.

Perfectly Elastic Demand

Condition where consumers buy all at a particular price and none at any other price, occurring when $|\epsilon| = \infty$.

Income Elasticity of Demand (ηi)

The proportional change in quantity demanded resulting from a proportional change in income.

Normal Good

A good for which income elasticity is positive ($+$); includes luxuries ($>1$) and necessities ($<1$).

Inferior Good

A good for which the income elasticity is negative ($-$).

Cross-Price Elasticity of Demand (exy)

Measures the responsiveness of quantity demanded of a good to changes in the price of another good.

Floor Price

A minimum price policy set above the equilibrium price ($P^*$) to be effective.

Price Ceiling

A maximum price policy set below the equilibrium price ($P^*$) to be effective.

Consumer Surplus

The difference between what a consumer is willing to pay and what they actually pay.

Producer Surplus

The difference between what a producer receives and the amount they were motivated to sell for.

Utility

The amount of satisfaction derived from the consumption of a good or service.

Law of Diminishing Marginal Utility

States that as more of a good is consumed, the process eventually yields smaller additions to total utility.

Gross National Product (GNP)

The market value of all final goods and services produced by all nationals in an economy during a given period.

Gross Domestic Product (GDP)

The market value of all final goods and services produced within the boundaries of a country.

Final Goods

Goods not purchased for producing other goods or for resale, used in output indicators to avoid double counting.

Net Factor Income from the Rest of the World (NFIRW)

The difference earnings of nationals overseas and the earnings of foreigners in the domestic country.

Consumer Price Index (CPI)

Indicates the change in the cost of purchasing a given bundle of goods bought by the average household.

Inflation Rate

Measures the rate of change in the general price level, often calculated using the CPI.

Labor Force

Refers to the population $15$ to $64$ years old who contribute to the production of goods and services.