Economics: Scarcity and Choice Concepts
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Questions and Answers

What is scarcity in economics?

The economic problem that resources are insufficient or limited to satisfy unlimited human needs and wants.

What does 'choice' refer to in economics?

What is produced and what is sacrificed.

What is the definition of efficiency in economics?

Best possible use of scarce resources to avoid waste.

What does 'economic well-being' refer to?

<p>Concept referring to satisfaction of economic situation.</p> Signup and view all the answers

What is the definition of sustainability in economics?

<p>Sustaining a particular activity/policy.</p> Signup and view all the answers

What is interdependence in economics?

<p>The idea that economic decision makers rely and interact with each other.</p> Signup and view all the answers

What is intervention in economics?

<p>Typically government intervention, gov involving in market</p> Signup and view all the answers

What are the 4 main factors of production?

<p>Land, Labour, Capital, Entrepreneurship (D)</p> Signup and view all the answers

What is opportunity cost?

<p>The next best alternative that must be sacrificed/forgone to obtain something else when an economic decision is made.</p> Signup and view all the answers

Which of the following is a free good?

<p>Air (D)</p> Signup and view all the answers

What is the Production Possibilities Curve (PPC)?

<p>A model that shows the maximum combination of any two goods which an economy could produce if all of its resources were fully employed and used efficiently. Points on the curve are called production possibilities and the level of technology is fixed.</p> Signup and view all the answers

What is economic growth?

<p>Increase in quantity of output produced in an economy over a period of time. Increases GDP and is short term.</p> Signup and view all the answers

What is economic development?

<p>A multidimensional concept that relates to the increase in standard of living and quality of life (e.g. greater availability of technology). is long term.</p> Signup and view all the answers

Which of the following leads to the other: economic growth or economic development?

<p>Economic development leads to economic growth (D)</p> Signup and view all the answers

What is positive economics?

<p>economic issues that can be studied looking at facts</p> Signup and view all the answers

What are the two common assumptions in economic model building?

<p>Ceteris paribus and rational economic decision making (A)</p> Signup and view all the answers

What is GDP?

<p>Gross Domestic Product, the dollar value of all final goods + services produced within an economy (produced in a country's borders) in a given year</p> Signup and view all the answers

What is Price elasticity of demand (PED)?

<p>A measure of the responsiveness of the quantity demand for a product to changes in its own price</p> Signup and view all the answers

What is inelastic demand? (PED<1)

<p>A change in price of a good/service leads to a proportionally smaller change in the quantity demand of it (0 &lt; PED &lt; 1)</p> Signup and view all the answers

What is unitary elastic demand? (PED=1)

<p>A change in price of a good/service leads to the same change in the quantity demand of it (PED = 1)</p> Signup and view all the answers

Which type of line represents perfectly inelastic demand? (PED=0)

<p>Vertical Line (A)</p> Signup and view all the answers

What is income elasticity of demand (IED)?

<p>The responsiveness of demand and hence quantity demanded of a product to changes in income</p> Signup and view all the answers

What is the price elasticity of supply (PES)?

<p>A measure of the responsiveness of the quantity supplied for a product to changes in its own price</p> Signup and view all the answers

What is Allocative Efficiency?

<p>an allocation of resources that results in producing the combination and quantity of G&amp;S most preferred by the society. It is achieved when the economy allocates its resources so an equilibrium and pareto optimum is reached and social welfare is maximised</p> Signup and view all the answers

What is demand?

<p>The quantity of a good or service that consumers are willing and able to buy at a certain price during a certain time period, ceteris paribus</p> Signup and view all the answers

What is the law of demand?

<p>As the price of a product increases, the quantity demanded of it will usually decrease, ceteris paribus, vice versa.</p> Signup and view all the answers

What is the law of supply?

<p>As the price of a product increases, the quantity supplied of it will usually increase, ceteris paribus, vice versa</p> Signup and view all the answers

What is the price mechanism?

<p>The system by which the forces of demand and supply determine the prices of products</p> Signup and view all the answers

What are the two functions of the price mechanism?

<p>Resource allocation function and rationing function (B)</p> Signup and view all the answers

What is the resource allocation function of the price mechanism?

<p>signals + incentives -&gt; new equilibrium from temporary disequilibrium</p> Signup and view all the answers

What is the rationing function of the price mechanism?

<p>Output is received by those who are willing and able to buy them</p> Signup and view all the answers

What is equilibrium in economics?

<p>State of balance between different forces (demand + supply) such that there is no tendency to change</p> Signup and view all the answers

What are primary commodities?

<p>Goods arising directly from the use of natural resources, or the factor of production 'land'</p> Signup and view all the answers

What are manufactured goods?

<p>Goods produced from raw materials through manufacturing processes.</p> Signup and view all the answers

What is an indirect tax?

<p>A tax levied on the expenditure of products by the government to generate government revenue</p> Signup and view all the answers

What is a subsidy?

<p>Financial assistance given by the government to producers in order to reduce cost of production.</p> Signup and view all the answers

What is consumer surplus?

<p>The difference between the price consumers are willing and able to pay for a good or service and the price they actually pay.</p> Signup and view all the answers

What are the determinants of PED?

<p>S (substitutes) P (proportion of income) L (luxury or necessity) A (addictive/habit forming) T (time to respond) (C)</p> Signup and view all the answers

What are price controls?

<p>The setting of minimum or maximum prices by the government so that the prices are unable to adjust to the equilibrium price determined by D&amp;S.</p> Signup and view all the answers

What is a price ceiling?

<p>Legal maximum price set below equilibrium price to be effective and prevent producers from selling the product above it (to make goods more affordable to people on low incomes), set by gov</p> Signup and view all the answers

What is a price floor?

<p>Legal minimum price rest above equlibrium price to be effective and prevent producers from selling products below it (provide income support to farmers or to increase the wages of low-skilled workers), set by gov</p> Signup and view all the answers

What is market failure?

<p>How a market economy (free markets) fails to achieve the correct outcomes for individuals and society.</p> Signup and view all the answers

Study Notes

Scarcity and Choice

  • Scarcity: Resources are limited, unable to fulfill unlimited human needs and wants.
  • Choice: The act of deciding what to produce and what to forgo in the face of scarcity.
  • Efficiency: Optimal use of scarce resources to minimize waste.
  • Equity: Fairness and justice in the distribution of resources.
  • Economic well-being: Satisfaction derived from an economic situation.
  • Sustainability: Maintaining an activity or policy over time.
  • Change: A continuous process in economics and in the real world.
  • Interdependence: Economic decision-makers rely on and interact with each other.
  • Intervention: Typically government involvement in a market.
  • Opportunity Cost: The value of the next best alternative that was forgone when making an economic decision.
  • Free Good: A good that isn't scarce and has zero opportunity cost.
  • Economic Good: A scarce resource, naturally produced or man-made, with an opportunity cost.

Production Possibility Curve (PPC)

  • PPC: A model illustrating the maximum combination of two goods a fully-employed, efficient economy can produce, given limited resources and fixed technology. Points on the curve represent production possibilities.
  • Economic Growth: An increase in the output of goods and services in an economy over a period, often measured by GDP.
  • Economic Development: Broad improvement in living standards and quality of life, often measured by factors beyond GDP.

Economic Theories

  • Positive economics: Focuses on factual analysis of economic issues.
  • Normative economics: Incorporates value judgments and opinions in analyzing economic issues.

Economic Modeling Assumptions

  • Ceteris paribus: Holding all other variables constant.
  • Rational economic decision-making: Individuals act in their self-interest.

Macroeconomic Measures

  • GDP (Gross Domestic Product): The total market value of all final goods and services produced within a country's borders in a given year.

Elasticity

  • Price Elasticity of Demand (PED): Measures responsiveness of quantity demanded to price changes.

  • Inelastic Demand (PED): A change in price leads to a proportionally smaller change in quantity demanded (0 < PED < 1).

  • Unitary Elastic Demand (PED): A change in price leads to an equal change in quantity demanded (PED = 1).

  • Perfectly Inelastic Demand (PED = 0): A vertical demand curve.

  • Income Elasticity of Demand: Measures the responsiveness of demand to changes in income.

  • Price Elasticity of Supply (PES): Measures responsiveness of quantity supplied to price changes.

Market Efficiency

  • Allocative Efficiency: Resource allocation leading to the optimal combination and quantity of goods and services preferred by society. It occurs when an equilibrium and Pareto optimum are reached, maximizing social welfare.

Supply and Demand

  • Demand: The quantity of a good or service consumers are willing and able to buy at a given price and time.
  • Law of Demand: Higher prices lead to lower quantities demanded, vice versa, ceteris paribus.
  • Supply: The quantity of a good or service producers are willing and able to offer at a given price and time.
  • Law of Supply: Higher prices lead to higher quantities suppliers offer, vice versa, ceteris paribus.

Market Equilibrium and Mechanisms

  • Price Mechanism: System where supply and demand forces determine product prices.
  • Resource allocation function: signaling mechanism directs resources to where they are most valued in the economy
  • Rationing function: Allocates goods to those who are willing and able to pay.
  • Equilibrium: A state of balance where there's no tendency for change in price or quantity.

Goods and Taxes

  • Primary commodities: Goods deriving directly from natural resources (e.g., agricultural products).
  • Manufactured goods: Products made from raw materials.
  • Indirect tax: Taxes levied on consumer expenditure.
  • Subsidy: Financial aid from the government to reduce production costs.

Consumer and Producer Surplus

  • Consumer surplus: Difference between what consumers are willing to pay and actual price.
  • Producer surplus: Difference between price received and price producers are willing to accept.

Factors Influencing Elasticities

  • Determinants of PED: Substitutes, proportion of income, necessity/luxury, addictive nature, time to respond.
  • Determinants of PES: Production lag, inventory/stocks, spare capacity, substitutability of factors of production, time period

Price Controls

  • Price Ceiling: A legal maximum price set below the equilibrium price, often intended to make goods more affordable.
  • Price Floor: A legal minimum price set above the equilibrium price, often to support producers’ income.

Market Failure

  • Market failure: A situation where free markets fail to achieve socially desirable outcomes.

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Explore key economic concepts related to scarcity and choice. This quiz covers essential terms such as opportunity cost, efficiency, and equity, providing a foundational understanding of economic decision-making. Perfect for those studying introductory economics or preparing for related exams.

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