SIM Global Education · FACULTY OF ECONOMICS

ECO2101 Microeconomics

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The Complete Exam Bible · July 2026

ECO2101 Overview

Microeconomics
— A source-grounded ECO2101 guide to scarcity, opportunity cost, comparative advantage and the complete published assessment structure.
  • SIM Global Education
  • July 2026 offering
  • Diploma module
  • Economics

ECO2101 covers scarcity, demand and supply, equilibrium, elasticity, consumer choice, production, market structure and external effects. It is taught within SIM Global Education diploma module. It is a diploma module. It carries Confirm the module credit value in Canvas.

  • Start at the margin Name the next unit and the opportunity cost before deciding.
  • Shift or movement Change in price moves along a curve; another determinant can shift it.
  • Elasticity has direction Write the percentage-change numerator and denominator before interpreting magnitude.
  • Private is not social External costs require a wider marginal-cost boundary.
ECO2101 · SIM Global Education
An independent, AskSia-authored study guide. AskSia is not affiliated with, endorsed by, or sponsored by SIM Global Education; the course code and name are used for identification only.
Assessment

How ECO2101 is assessed

ComponentWeightFormat
CA001 — Individual Assignment30%Due 24 July 2026 at 11:59 am
CA002 — Class Participation20%Through Tutorial 12
Exam50%20 August 2026, 10:00 am–12:00 pm

The July 2026 L02 overview publishes CA001 individual assignment 30% due 24 July 2026 at 11:59 am, CA002 class participation 20% through Tutorial 12, and a 50% examination on 20 August 2026 from 10:00 am to 12:00 pm. Canvas controls later operational changes.

CA001 30%CA002 20%Exam 50%Canvas check
Figure. July 2026 assessment structure and operational confirmation route.
Current dates · verify in LMS

Current ECO2101 dates

DateItemControl
24 July 2026 at 11:59 amCA001 dueJuly 2026 L02 overview.
20 August 2026, 10:00 am–12:00 pmExamJuly 2026 L02 overview.

Dates come from the English L02 July 2026 module overview; Canvas controls later changes. Confirm exact deadlines and submission settings in the live LMS.

Contents · every chapter, one map

What ECO2101 covers

Read Scarcity, Opportunity Cost and Market Exchange as the foundation, Production, Costs and Competitive Supply as the main change in method, and Strategic Rivalry and External Effects as the final application of the course.

01

Scarcity, Opportunity Cost and Market Exchange

scarcity · opportunity cost · comparative advantage · connect production possibilities to gains from exchange

Define scarcity

The course material gives this chapter a concrete anchor: The opening topics establish scarcity, production possibilities, demand, supply and exchange.

  • Scarcity
  • Opportunity cost
  • Comparative advantage
  • Applying scarcity
  • Limits of opportunity cost and comparative advantage
02

Market Equilibrium, Efficiency and Elasticity

market equilibrium · consumer surplus · price elasticity of demand · analyse adjustment and welfare around a market equilibrium

Define market equilibrium

The course material gives this chapter a concrete anchor: The equilibrium and elasticity topics connect market adjustment, surplus and responsiveness.

  • Market equilibrium
  • Consumer surplus
  • Price elasticity of demand
  • Applying market equilibrium
  • Limits of consumer surplus and price elasticity of demand
03

Utility, Budget Constraints and Consumer Choice

marginal utility · budget constraint · marginal rate of substitution · locate a constrained consumer optimum

Define marginal utility

The course material gives this chapter a concrete anchor: The consumer topics join marginal utility, indifference curves and the budget line.

  • Marginal utility
  • Budget constraint
  • Marginal rate of substitution
  • Applying marginal utility
  • Limits of budget constraint and marginal rate of substitution
04

Production, Costs and Competitive Supply

marginal product · marginal cost · perfect competition · derive short-run output and competitive supply

Define marginal product

The course material gives this chapter a concrete anchor: The producer topics connect diminishing marginal product, cost curves and price-taking output.

  • Marginal product
  • Marginal cost
  • Perfect competition
  • Applying marginal product
  • Limits of marginal cost and perfect competition
05

Monopoly and Product Differentiation

monopoly · marginal revenue · monopolistic competition · compare market power, output and long-run entry

Define monopoly

The course material gives this chapter a concrete anchor: The market-power topics separate the marginal output rule from pricing and long-run entry.

  • Monopoly
  • Marginal revenue
  • Monopolistic competition
  • Applying monopoly
  • Limits of marginal revenue and monopolistic competition
06

Strategic Rivalry and External Effects

oligopoly · Nash equilibrium · externality · test strategic equilibrium and widen the welfare boundary

Define oligopoly

The course material gives this chapter a concrete anchor: The closing topics join strategic interdependence, game outcomes and external costs or benefits.

  • Oligopoly
  • Nash equilibrium
  • Externality
  • Applying oligopoly
  • Limits of Nash equilibrium and externality

It is positioned as a Microeconomics module in Diploma in Management Studies materials.

The same marginal method is used to explain choice, equilibrium, market power and welfare, but the relevant constraint and decision maker change across those settings. The module moves from scarcity and market coordination through consumer and producer choice to market structure and external effects.

A complete microeconomic answer names the decision maker, margin, constraint, counterfactual and welfare boundary before interpreting a diagram or calculation.

Assessment in ECO2101 is distributed as follows: CA001 individual assignment 30%, CA002 class participation 20% and Exam 50% in the July 2026 L02 overview.

The operational assessment conditions matter here.

The July 2026 overview publishes a two-hour Exam; confirm permitted resources and room in Canvas.

What makes ECO2101 demanding is concrete: Keeping movement along a curve separate from a curve shift, then connecting the private optimum to efficiency without silently changing the ceteris-paribus boundary.

Confirm module-specific pass conditions in Canvas.

For enrolment planning, Confirm module prerequisites in Canvas.

Read Scarcity, Opportunity Cost and Market Exchange as the foundation, Production, Costs and Competitive Supply as the main change in method, and Strategic Rivalry and External Effects as the final application of the course.

Worked example · free

Trace a market response

Q [5 marks]. AskSia-authored practice. A binding input shortage raises marginal cost in a competitive market. Explain the short-run market response. This practice mark allocation is independently authored and not a university assessment scheme.
Figure.Figure. marginal product, marginal cost and perfect competition support a discipline-specific evidence-tested business inference.marginal productmarginal costperfect competitionevidence-tested business inference
Figure. marginal product, marginal cost and perfect competition support a discipline-specific evidence-tested business inference.
  • 1Shift the market supply curve left.
  • 1Locate the new price and quantity intersection.
  • 1Separate firm movement along demand from the market shift.
  • 1Identify the surplus and welfare effects.
  • 1State what changes if the shortage ends.
A leftward supply shift raises equilibrium price and lowers equilibrium quantity, all else equal. Buyers move along demand while the cause sits on the supply side; welfare interpretation requires the source and duration of the constraint.
Sia tip — Draw the original curves first; otherwise a movement can be mistaken for a shift.
Glossary

Key terms

Scarcity
Limited resources relative to competing wants require choice. In this chapter it establishes the object needed to connect production possibilities to gains from exchange.
Opportunity cost
The value of the best alternative forgone by a choice. It becomes operational when the analysis must connect production possibilities to gains from exchange.
Comparative advantage
Lower opportunity cost in an activity relative to another decision maker. Its interpretation stays bounded because a bowed production frontier embeds changing opportunity cost.
Market equilibrium
Price and quantity at which planned demand equals planned supply. In this chapter it establishes the object needed to analyse adjustment and welfare around a market equilibrium.
Consumer surplus
Difference between willingness to pay and the price paid. It becomes operational when the analysis must analyse adjustment and welfare around a market equilibrium.
Price elasticity of demand
Responsiveness of quantity demanded to a percentage change in price. Its interpretation stays bounded because elasticity magnitude depends on the measured interval and ceteris-paribus conditions.
Marginal utility
Additional satisfaction associated with one more unit of consumption. In this chapter it establishes the object needed to locate a constrained consumer optimum.
Budget constraint
Affordable combinations determined by income and prices. It becomes operational when the analysis must locate a constrained consumer optimum.
Marginal rate of substitution
Amount of one good a consumer is willing to give up for another along an indifference curve. Its interpretation stays bounded because preferences alone do not identify a choice without prices and income.
FAQ

ECO2101 FAQ

Where is the hardest reasoning in Microeconomics?

Keeping movement along a curve separate from a curve shift, then connecting the private optimum to efficiency without silently changing the ceteris-paribus boundary. ECO2101 covers scarcity, demand and supply, equilibrium, elasticity, consumer choice, production, market structure and external effects.

How does assessment work in Microeconomics?

CA001 individual assignment 30%, CA002 class participation 20% and Exam 50% in the July 2026 L02 overview. The July 2026 overview publishes a two-hour Exam; confirm permitted resources and room in Canvas.

What form does the exam or final task take in Microeconomics?

The published July 2026 examination is scheduled for 20 August from 10:00 am to 12:00 pm, a two-hour sitting. Confirm the room, permitted resources and any operational change in Canvas before the exam.

Which pass conditions apply in Microeconomics?

Canvas and current institutional progression rules control module pass conditions. Verify them before submission and examination; this independent resource treats the published weightings as assessment structure, not as evidence of a separate hurdle.

Where should current dates for Microeconomics be confirmed?

CA001 due: 24 July 2026 at 11:59 am; Exam: 20 August 2026, 10:00 am–12:00 pm. Confirm any change and the exact submission setting in the live LMS. CA001 individual assignment 30%, CA002 class participation 20% and Exam 50% in the July 2026 L02 overview.

How should elasticity be used in a market analysis?

Write the percentage-change numerator and denominator, retain the sign for direction, and use magnitude to classify responsiveness before drawing a revenue implication. ECO2101 covers scarcity, demand and supply, equilibrium, elasticity, consumer choice, production, market structure and external effects.

Why can a competitive market outcome still be inefficient?

Efficiency can fail when private buyers or sellers do not bear an external cost or benefit; widen the marginal boundary before comparing market and social quantities.

Chapter questions

Questions students ask in each ECO2101 chapter

Which links need evidence when students connect production possibilities to gains from exchange?
Connect production possibilities to gains from exchange. The opening topics establish scarcity, production possibilities, demand, supply and exchange. Limited resources relative to competing wants require choice. In this chapter it establishes the object needed to connect production possibilities to gains from exchange. Chapter 01 · Scarcity, Opportunity Cost and Market Exchange
Where should the reasoning begin when students analyse adjustment and welfare around a market equilibrium?
Analyse adjustment and welfare around a market equilibrium. The equilibrium and elasticity topics connect market adjustment, surplus and responsiveness. Price and quantity at which planned demand equals planned supply. In this chapter it establishes the object needed to analyse adjustment and welfare around a market equilibrium. Chapter 02 · Market Equilibrium, Efficiency and Elasticity
Which evidence helps students locate a constrained consumer optimum?
Locate a constrained consumer optimum. The consumer topics join marginal utility, indifference curves and the budget line. Additional satisfaction associated with one more unit of consumption. In this chapter it establishes the object needed to locate a constrained consumer optimum. Chapter 03 · Utility, Budget Constraints and Consumer Choice
Which inputs and assumptions control the attempt to derive short-run output and competitive supply?
Derive short-run output and competitive supply. The producer topics connect diminishing marginal product, cost curves and price-taking output. Additional output produced by one more unit of a variable input. In this chapter it establishes the object needed to derive short-run output and competitive supply. Chapter 04 · Production, Costs and Competitive Supply
Which common basis lets a student compare market power, output and long-run entry?
Compare market power, output and long-run entry. The market-power topics separate the marginal output rule from pricing and long-run entry. Market structure with one seller protected by barriers to entry. In this chapter it establishes the object needed to compare market power, output and long-run entry. Chapter 05 · Monopoly and Product Differentiation
Which observation would let a student test strategic equilibrium and widen the welfare boundary?
Test strategic equilibrium and widen the welfare boundary. The closing topics join strategic interdependence, game outcomes and external costs or benefits. Market structure in which a small number of firms make interdependent choices. In this chapter it establishes the object needed to test strategic equilibrium and widen the welfare boundary. Chapter 06 · Strategic Rivalry and External Effects
Study strategy

How to study for the exam

Retrieve the course map, practise the recurring method—identify the agent, constraint and margin, draw or calculate the relevant relationship, test a changed condition and separate private choice from efficiency or distributional judgement—on changed scenarios, and verify every operational assessment detail in the live institutional system.

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