Economics Concepts Explained

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Questions and Answers

Which of the following best illustrates the concept of efficiency in economics?

  • Distributing resources equally among all members of society.
  • Increasing production to meet unlimited wants.
  • Producing the maximum possible output with the minimum input. (correct)
  • Achieving a desired outcome regardless of the resources used.

What distinguishes a shortage from scarcity?

  • Scarcity only affects developing countries, while shortages affect developed countries.
  • Scarcity is temporary, while a shortage is a permanent condition.
  • A shortage can be resolved by increasing production, while scarcity is due to fundamentally limited resources. (correct)
  • Shortages affect only certain commodities, while scarcity affects all resources.

What is the primary focus of microeconomics?

  • Decision-making by individual consumers and firms. (correct)
  • Government policies aimed at economic growth.
  • International trade and finance.
  • The aggregate behavior of the economy as a whole.

What kind of statement is 'The government should increase the minimum wage to reduce income inequality'?

<p>A normative economics statement. (B)</p> Signup and view all the answers

What does the Production Possibilities Frontier/Curve represent?

<p>The points at which an economy is most efficiently producing its goods and services. (C)</p> Signup and view all the answers

If resources are limited, what implications does this have for decision-makers?

<p>Decision-makers must decide what to have and what to forgo. (A)</p> Signup and view all the answers

An increase in interest rates typically leads to:

<p>A decrease in consumer spending. (B)</p> Signup and view all the answers

When the price of raw materials increases, what is the likely effect on the supply of goods?

<p>The supply of goods decreases. (D)</p> Signup and view all the answers

What does 'rational behavior' mean in the context of economics?

<p>Individuals may make different choices under different circumstances. (C)</p> Signup and view all the answers

Which scenario best demonstrates the concept of opportunity cost?

<p>An individual chooses to attend a concert instead of working, forgoing potential income. (B)</p> Signup and view all the answers

At market equilibrium, which condition is always true?

<p>Quantity demanded is equal to quantity supplied. (A)</p> Signup and view all the answers

What does elasticity measure in economics?

<p>The impact of one variable on another. (B)</p> Signup and view all the answers

If the price of gasoline increases by 20% and the quantity demanded decreases by 5%, what type of price elasticity of demand does gasoline have?

<p>Inelastic. (B)</p> Signup and view all the answers

Which of the following goods is most likely to have perfectly inelastic demand?

<p>Basic life-saving medication. (D)</p> Signup and view all the answers

What does a price elasticity of demand (PED) equal to zero signify?

<p>Perfectly inelastic demand. (D)</p> Signup and view all the answers

How is income elasticity of demand (IED) defined?

<p>The responsiveness of quantity demanded to a change in consumer income. (A)</p> Signup and view all the answers

What does cross-price elasticity of demand (CPED) measure?

<p>The responsiveness of the quantity demanded of one good to a change in the price of another good. (C)</p> Signup and view all the answers

If the price of coffee increases and, as a result, the demand for tea increases, what does this indicate about the cross-price elasticity of demand (CPED) between coffee and tea?

<p>The CPED is positive, indicating that coffee and tea are substitutes. (B)</p> Signup and view all the answers

What does price elasticity of supply (PES) measure?

<p>How much the quantity supplied of a good responds to a change in its price. (C)</p> Signup and view all the answers

Which of the following scenarios indicates inelastic demand?

<p>A 20% increase in price leads to a 5% decrease in quantity demanded. (D)</p> Signup and view all the answers

According to the law of demand, which scenario will MOST likely happen, assuming all other factors are constant?

<p>An increase in the price of a product leads to a decrease in the quantity demanded. (A)</p> Signup and view all the answers

Given the demand function $Qd = a - bP$, what does the coefficient 'b' represent?

<p>The change in quantity demanded for every one unit change in price. (B)</p> Signup and view all the answers

How would an economist MOST accurately describe the relationship between the price of coffee and the demand for tea, assuming they are considered substitute goods?

<p>An increase in the price of coffee would lead to an increase in the demand for tea. (B)</p> Signup and view all the answers

If consumer income increases, what would you MOST likely expect to happen to the demand for instant noodles, assuming instant noodles are an inferior good?

<p>The demand for instant noodles will decrease. (A)</p> Signup and view all the answers

Which of the following scenarios BEST illustrates the relationship between complementary goods?

<p>An increase in the price of gasoline leads to a decrease in the demand for cars. (D)</p> Signup and view all the answers

How would you describe a 'market' in economic terms?

<p>A place where buyers and sellers interact to exchange goods, services, or resources. (B)</p> Signup and view all the answers

Which factor does NOT directly determine the supply in a market?

<p>Consumer income. (D)</p> Signup and view all the answers

Which situation would MOST likely cause a shift in the demand curve for a product?

<p>A significant change in consumer tastes and preferences. (B)</p> Signup and view all the answers

What is a key difference between a demand schedule and a demand function?

<p>A demand schedule is a table, while a demand function is a mathematical equation. (A)</p> Signup and view all the answers

Which of the following goods is LEAST likely to be considered a normal good?

<p>Public transportation. (A)</p> Signup and view all the answers

Which of the following scenarios best illustrates the relationship between coffee and creamer as goods with a negative relationship?

<p>A decrease in the price of coffee leads to an increase in the demand for creamer. (D)</p> Signup and view all the answers

How do changes in population size most directly impact the demand for goods and services in a market?

<p>By shifting the demand curve, as the number of consumers changes. (A)</p> Signup and view all the answers

According to the law of supply, what is the most likely outcome if the market price of a popular smartphone significantly increases, assuming all other factors remain constant (ceteris paribus)?

<p>The quantity supplied of the smartphone will increase. (B)</p> Signup and view all the answers

What does the supply function, represented as $Q_s = a + bP$, primarily illustrate?

<p>The relationship between the price of a good and the quantity producers will supply. (A)</p> Signup and view all the answers

Assuming all other factors are constant, what is the likely effect on the supply of gasoline if the cost of crude oil (a primary input) increases significantly?

<p>The supply of gasoline will decrease. (A)</p> Signup and view all the answers

If drones and drone piloting services are complementary goods, what would likely happen to the supply of drone piloting services if the price of drones significantly decreases?

<p>The supply of drone piloting services would decrease. (C)</p> Signup and view all the answers

The government introduces a new, stringent environmental regulation that requires all manufacturing plants to upgrade their pollution control equipment. How would this most likely affect the market supply?

<p>Decrease the market supply by increasing production costs. (D)</p> Signup and view all the answers

How will an anticipation of decreasing housing prices influence the current demand in the housing market?

<p>Decrease in current demand as consumers postpone purchases to benefit from lower prices. (B)</p> Signup and view all the answers

Due to technological advancements, the production of solar panels becomes significantly more efficient and less expensive. What is the likely impact on the supply curve for solar panels?

<p>The supply curve shifts to the right, indicating an increase in supply. (D)</p> Signup and view all the answers

A major hurricane devastates several key agricultural regions, severely damaging crops. What immediate impact would this natural disaster likely have on the supply of the affected agricultural products?

<p>A decrease in supply due to damage to production capacity. (C)</p> Signup and view all the answers

Flashcards

Market Equilibrium

The point where the quantity demanded equals the quantity supplied.

Elasticity

Measures the responsiveness of one variable to a change in another.

Price Elasticity of Demand (PED)

Measures how quantity demanded changes with a change in the price of a good.

Income Elasticity of Demand (IED)

Measures how quantity demanded changes with a change in consumer income.

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Cross Price Elasticity of Demand (CPED)

Measures how quantity demanded of one good changes with a change in the price of another good.

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Price Elasticity of Supply (PES)

Measures how quantity supplied changes with a change in the price of a good.

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Perfectly Inelastic Demand

Quantity demanded remains constant regardless of price changes (PED = 0).

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Inelastic Demand

Percentage change in quantity demanded is smaller than the percentage change in price.

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Market

A place where buyers and sellers meet to exchange goods, services, or resources.

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Demand

The quantity of goods or services consumers are willing and able to purchase.

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Law of Demand

As price increases, quantity demanded decreases, assuming all other factors are constant.

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Demand Schedule

A table showing the quantity of a good or service consumers are willing to buy at various prices.

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Demand Function

A mathematical equation showing the relationship between the price of a good and the quantity demanded.

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Normal Goods

Goods or services that have increasing demand when income increases.

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Inferior Goods

Goods or services that have decreasing demand when income increases.

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Substitute Goods

Goods that can replace each other in consumption.

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Complementary Goods

Goods that are consumed together, enhancing the use of each other.

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Income & Demand

When income increases, quantity demanded generally increases, and vice versa.

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Economics

The study of how society manages its scarce resources.

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Social Science

Deals with human society and an individual's role within it; involves uncontrolled variables.

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Efficiency

Using resources well. Attaining maximum output with minimal input.

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Effectiveness

Achieving objectives. Producing the intended or expected result.

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Scarcity

The condition where limited resources cannot satisfy unlimited wants and needs.

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Shortage

A temporary situation where demand exceeds supply.

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Opportunity Cost

The value of the next best alternative that you give up when making a decision.

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Production Possibilities Frontier/Curve

A graph showing the maximum possible output combinations of two goods, given current resources and technology.

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Marginal Analysis

Comparing the additional cost and benefit of one more unit.

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Macroeconomics

Studies the behavior of the economy as a while.

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Negative Relationship (Goods)

As the price of one good increases, demand for the other decreases.

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Taste and Preference

Individual likes or dislikes that influence how much of a good or service people buy at a given price.

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Price Expectations

Beliefs about future price movements that cause changes in current buying behavior.

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Population (Demand)

The number of consumers in a market, influencing overall demand.

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Supply

The quantity of a good or service sellers are willing and able to offer at different prices.

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Law of Supply

As price increases, quantity supplied also increases (ceteris paribus).

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Supply Function Formula

Qs = a + bP (Quantity supplied equals 'a' plus 'b' times price).

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Input Price/Cost

Price of the resources used in the production process.

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Substitutes Price (Supply)

As a substitute's price increases, the supply of the other product will increase.

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Government Regulations (Supply)

High taxes or strict rules decrease the supply of the commodoties.

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Study Notes

  • Economics is a social science.
  • Economics studies how society manages its scarce resources.
  • Natural science concerns natural phenomena in different areas and controlled variables.
  • Social Science deals with human society and individuals' roles, using uncontrolled variables.
  • Efficiency is how well resources are used, attaining maximum output with minimal input.
  • Effectiveness is achieving objectives by producing the intended result.
  • Scarcity is the condition where wants and needs are not satisfied due to limited resources and unlimited wants.
  • Shortage is a temporary condition where demand exceeds current supply.
  • Shortages can be resolved by increasing production or training more service providers.
  • Limited resources force decision-makers to choose what to have and what to forgo.
  • Opportunity Cost is the cost of forgoing something else.
  • Production Possibilities Frontier/Curve represents points where an economy is most efficiently producing goods and services.
  • Rational behavior means individuals may make different choices under different circumstances.
  • Marginal Analysis compares marginal cost and marginal benefits.
  • Microeconomics focuses on individual and firm decision-making.
  • Macroeconomics examines the aggregate behavior of the economy.
  • Positive Economics describes how the economy works without value judgments or opinions.
  • Normative Economics considers how the economy should work, incorporating value judgments, opinions, and ethical considerations.
  • An increase in interest rates leads to a decrease in consumer spending.
  • When the price of raw materials increases, the cost of production for businesses rises, leading to a decrease in the supply of goods.
  • Governments impose price controls on essential goods to ensure affordability for low-income families.
  • Governments increase the minimum wage to reduce income inequality.
  • A market is where buyers and sellers exchange goods, services, or resources.
  • Buyers determine market demand.
  • Sellers determine supply in the market.
  • Demand refers to the quantity of goods or services consumers are willing and able to purchase.
  • The Law of Demand states that as price increases, quantity demanded decreases, assuming all factors are constant (ceteris paribus).
  • A Demand Schedule visually represents the inverse relationship between price and quantity demanded in a table.
  • A Demand Function is a mathematical equation showing the relationship between price and quantity demanded.
  • The formula is Qd=a-bP.
  • Intercept is the value obtained with the absence of the independent variable (price), quantity demanded when the price is 0.
  • Slope shows how much the quantity demanded decreases when the price increases by 1 peso.
  • A Demand Curve is a graphical representation of the relationship between the price of a good or service and the quantity demanded.
  • Income and the price of related goods & services are factors affecting demand.
  • Taste and Preference and expectation on future prices are factors affecting demand.
  • Changes in population are also a factor affecting demand.
  • When income increases, quantity demand generally increases, and vice versa.
  • Income influences demand for both normal and inferior goods.
  • Normal goods/services have increasing demand as income increases, like jewelry.
  • Inferior goods/services have decreasing demand as income increases, like instant noodles.
  • If the price of a commodity increases, the demand for its substitute goods increases, and vice versa.
  • If the price of a commodity increases, the demand of its complementary goods decreases, and vice versa.
  • Substitute goods can replace each other in consumption, showing a positive relationship.
  • As the price of one increases, demand for the other increases.
  • Complementary Goods are consumed together, showing a negative relationship.
  • As the price of one increases, demand for the other decreases.
  • Taste and preference refers to an individual's likes or dislikes for certain goods or services, significantly impacting demand.
  • When consumers expect the price of a good to rise in the future, they may buy more of that good now, anticipating paying higher prices later.
  • Changes in population can affect demand because they influence the number of consumers.
  • Supply refers to the quantity of a good or service that sellers are willing and able to offer for sale at different prices.
  • The Law of Supply states that as price increases, quantity supplied also increases, assuming all factors are constant (ceteris paribus).
  • A Supply Function is a mathematical equation showing the relationship between the quantity of a good/service producers supply and the factors that affect their decision.
  • The primary factor is price.
  • The formula is Qs=a+bP.
  • A Supply Curve represents the relationship between the price of a good or service and the quantity that producers are willing to supply.
  • Factors affecting supply include input price, the price of related goods & services, and expectation on future prices.
  • Technology, government regulations, the number of suppliers, and unexpected calamities or natural disasters also affect supply.
  • When input costs increase, the quantity supplied is likely to decrease, and vice versa.
  • If the price of a substitute good of a commodity increases, the supply of the other will increase, and vice versa.
  • If the price of a complementary good of a commodity increases, the supply of the other will decrease, and vice versa.
  • A high amount of money to be paid due to government regulations is likely to decrease supply in an area.
  • If the tax is high, expect a decrease in the supply of different commodities.
  • When government subsidies increase, the supply would also increase.
  • Market equilibrium is the point where quantity demanded equals the quantity supplied.
  • It is where buyers are willing and able to buy the product or avail of the service, and suppliers are also willing and able to sell their product or deliver the service.
  • Elasticity measures the impact of one variable over another.
  • Price Elasticity of Demand (PED) measures how much the quantity demanded of a good responds to a change in its price.
  • Income Elasticity of Demand (IED) measures how much the quantity demanded of a good responds to a change in consumer's income.
  • Cross-Price Elasticity of Demand (CPED) measures how much the quantity demanded of one good responds to a change in the price of another good.
  • Price Elasticity of Supply (PES) measures how much the quantity supplied of a good responds to a change in the price of that good.
  • Perfectly Inelastic Demand occurs when the quantity demanded remains unchanged regardless of price changes, consumers will buy the same amount no matter the price (PED=Zero).
  • Inelastic Demand occurs when the percentage change in quantity demanded is smaller than the percentage change in price.
  • Consumers are not highly responsive to price changes (PED<1).
  • Unit Elastic Demand occurs when the percentage change in quantity demanded is exactly equal to the percentage change in price.
  • Total revenue remains constant (PED=1).
  • Perfectly Elastic Demand is a commodity with infinite elasticity; if the price remains the same, the quantity demanded would be infinite.
  • Perfectly Inelastic Supply means that the quantity supplied remains constant regardless of changes in price.
  • Elastic Supply means that producers can easily increase the quantity supplied when the price rises.
  • Perfectly Elastic Supply means that producers are willing to supply any quantity at a specific price, but supply falls to zero if the price drops even slightly.
  • Consumer Theory argues that individual consumption decisions are always made because people desire to maximize their satisfaction from consuming various goods or services.
  • Utility is an individual's pleasure, happiness, or satisfaction.
  • People are aware of the range of products available in the market, the prices of the products, and the capacity of the products.
  • Consumption Bundles are certain combinations of two commodities that yield a consumer a certain level of utility.
  • An Indifference Curve shows combinations of two commodities which, when consumed, will yield the same level of satisfaction.
  • A Utility Function shows an individual's value of the utility attained from consuming each conceivable bundle of goods.
  • Cardinal Values are based on the number of "util" or the unit of satisfaction.
  • Ordinal Values are based on rankings.
  • The Law of Marginal Utility states that as intake of a commodity increases, satisfaction from the next units declines.
  • Marginal Rate of Substitution (MRS) is the maximum amount of a good a consumer will give up to obtain one additional unit of another good.
  • Completeness means comparing every pair of consumption bundles.
  • Transitivity means that if X is preferred to Y, and Y is preferred to Z, then X must be preferred to Z.
  • Non-Satiation means more is preferred.
  • Consumers always receive happiness from more, or at least can freely dispose of any excess from that.
  • The 3 Properties of Consumer Preferences are : Completeness, Transitivity, Non-Satiation.
  • An indifference map graphs a set of indifference curves showing two commodities.
  • The map describes a person's preferences.
  • The curves do not intersect.
  • A budget line graphs combinations of goods or services for a person, where the total amount of money spent is proportionate to their income.
  • It assumes that all people spend within the level of their income.
  • The decision must lie on the budget line and on the indifference curve that depicts the most preferred combination of the consumer.
  • An Engel Curve shows the relationship between the amounts of product that people are willing to buy and their corresponding income.
  • Economics thinks about: Decision making during scarcity, rational behavior and marginal analysis.
  • Ceteris Paribus means that all things are equal.
  • Inverse Relationship is the relationship between price and quantity demand.

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