ECNM08027: pass the exams, not just read the notes
Your complete guide to The University of Edinburgh's economics 1a module. See where the marks are, work real practice questions, and study with an AI tutor that knows ECNM08027.
Sia generates ECNM08027 practice questions, walks through cost-benefit reasoning and supply step by step, and quizzes you on the material the exam weights most heavily.
Worked example
A student's utility from wealth is the square root of wealth. They are offered a gamble: a 50% chance of 100 and a 50% chance of 0. What certain amount would leave them exactly as well off as taking the gamble?
Compute the expected utility of the gamble, not its expected value: 0.5 × sqrt(0) + 0.5 × sqrt(100) = 0.5 × 0 + 0.5 × 10 = 5.
Compare with the expected value of the gamble, which is 50. The student would swap the gamble for just 25, half its expected value.
That gap is the risk premium, and it exists because the square root function has diminishing marginal utility: the gain from 0 to 100 is worth less than twice the gain from 0 to 50.
The trap: Answering 50, the expected value. Expected value and expected utility are different objects, and the whole point of the risk material is that a risk-averse person values a gamble below its expected value. Whenever a question gives you a utility function rather than just payoffs, it is asking you to average the utilities, not the money. classic slip!
One exam decides 70% of your grade. The bulk of the mark, but the two coursework components give you a running signal before it. This whole page is built around that.
Overview
What ECNM08027 is, and where it sits
Economics 1A is the first half of Edinburgh's calculus-based first-year economics sequence, new for 2026/27. It replaces the first semester of the former full-year Economics 1, which is not delivered this year, and is taken alongside Economics 1B in Semester 2.
The semester is microeconomic and focuses on individual choice and markets: cost-benefit reasoning, supply and demand, consumer decision-making through budget constraints, preferences and optimisation, and the welfare tools used to evaluate price changes, taxes and other interventions. It then extends into decisions under uncertainty and risk, asymmetric information, and the behavioural material on altruism, bounded rationality and biases, plus an introduction to basic game theory.
Mathematics is developed inside the course rather than assumed. The catalogue lists the tools explicitly, from linear equations and systems through optimisation and differentiation to elasticity, exponentials and logarithms and basic probability, each applied in economic contexts. Students wanting a less mathematically intensive introduction are pointed to Economic Principles and Economic Applications instead.
Enrolment is restricted to first-year students on the economics and economics-joint degree programmes. This is the route to Year 2 economics, not a general elective.
Always treat your own course outline and the exam timetable as authoritative.
Difficulty & time commitment
Is ECNM08027 hard, and how much time does it take?
ECNM08027 is manageable if you keep a weekly rhythm and treat the back half as the main event. The pattern is consistent: it starts gently and steepens, and the heaviest assessment is the part that separates grades.
The difficulty curve and the assessment weighting point the same way: the back half is harder and worth more. Front-loading effort there is the highest-return decision in the module.
Is this module for you
Who tends to do well, and who tends to struggle
You will likely do well if
- You intend to continue in economics; the course is designed as that route.
- You are willing to do the mathematics as it arrives rather than treating it as a separate subject.
- You work problems weekly, since learning-by-doing is built into both the teaching and the 10% component.
- You use the class exam as a diagnostic rather than a verdict.
You may struggle if
- Your mathematics is weak and you postpone addressing it; optimisation appears early.
- You want a broad non-technical introduction. Economic Principles exists for that.
- You confuse expected value with expected utility in the risk material, which is the classic error.
- You skip the behavioural section as light relief; it is examinable and it is conceptually distinct.
- Derive demand from the constrained optimisation problem once by hand, fully, rather than quoting the result.
- For every intervention studied, compute the welfare change rather than describing its direction.
- Keep a page of the mathematical tools with one economic application each; the exam combines the two.
- In behavioural questions, state precisely which standard assumption is being relaxed.
Syllabus
The 9 topics, topic by topic
The exam-weight marker on each topic shows where the marks concentrate. The amber topics carry the highest exam weight.
T1 · Cost-benefit reasoning and the economic approach
Core principlesHow economists frame a decision, and the reasoning that recurs in every later topic.
T2 · Supply and demand
MarketsThe core market model, developed algebraically as well as graphically.
T3 · Consumer choice: budget constraints, preferences, optimisation
Consumer theoryDeriving demand from constrained optimisation rather than assuming it. The heart of the semester and where the calculus earns its place.
T4 · Elasticity, surplus and the effects of intervention
Welfare toolsEvaluating price changes, taxes and other interventions using elasticity, consumer surplus and standard welfare tools.
T5 · Uncertainty and risk
UncertaintyChoice when outcomes are not known in advance, and what risk aversion implies for the value of a gamble.
T6 · Asymmetric information
UncertaintyWhat happens to market performance when one side knows more than the other.
T7 · Basic game theory
Strategic interactionA first look at situations where your best choice depends on someone else's, introduced here and developed in later courses.
T8 · Behavioural departures from the standard model
BehaviouralAltruism, bounded rationality and biases, and how observed choices differ from what the standard model predicts.
T9 · Mathematical tools for economics
ThroughoutLinear equations and systems, differentiation and optimisation, functions of several variables, elasticity, exponentials and logarithms, and basic probability, taught in application rather than in isolation.
How it's assessed
Assessment structure
| Component | Weight | Format & timing |
|---|---|---|
| Degree exam | 70% | Written examination. End of semester diet. The bulk of the mark, but the two coursework components give you a running signal before it. |
| Class exam | 20% | Class examination held during the semester. Semester 1. An early and substantial check on whether the mathematical side has landed. |
| Weekly homework and quizzes | 10% | Homework and quizzes set weekly alongside the tutorial programme. Weekly. Learning-by-doing through problem solving is described as an integral part of the course. |
- The published components sum to 100. No separate hurdle is published for this course.
- Written examination accounts for 70% of the mark in one degree exam, with a further 20% in a class exam during the semester. The catalogue publishes no exam information table for this course, so no paper length is stated.
- Calculator policy: Not stated in the course catalogue entry.
This is an exam-cram module. With the exams at 70% of the grade and the degree exam alone at 70%, your result is overwhelmingly decided by how well you perform under time pressure. The bulk of the mark, but the two coursework components give you a running signal before it.
How to actually pass it
A weekly rhythm, two checklists, and the traps to avoid
The module rewards consistency over cramming, and practice over re-reading. Here is the loop that works, then what to have nailed before each exam.
The weekly loop
Before the mid-semester checklist
- Cost-benefit reasoning applied to a concrete decision
- Supply and demand solved algebraically
- Consumer optimisation from budget constraint and preferences
- Elasticity and its link to revenue and to welfare
Before the final heaviest topics
- Welfare analysis of taxes and interventions
- Expected utility, risk aversion and the certainty equivalent
- Asymmetric information and its market consequences
- Basic game theory concepts
- Behavioural departures, stated precisely rather than gestured at
The mistakes that cost marks
Averaging money instead of utility. Expected value is not expected utility. Given a utility function, average the utilities; the gap between the two is exactly what risk aversion means.
Treating elasticity as a definition to recall. It is the link between a price change and what happens to revenue and welfare, and questions test that link rather than the formula.
Skipping the derivation. Demand curves in this course come from optimisation. Quoting the curve without the derivation loses the marks the calculus-based route exists to award.
Assuming any student can enrol. Enrolment is restricted to the listed programmes; check eligibility before planning your year around it.
Teaching team
Who teaches ECNM08027
The bios below are factual. We do not rate lecturers; any star ratings are submitted by students who have taken ECNM08027.
Dr Sean Brocklebank
Listed as course organiser for Economics 1A in the 2026/27 course catalogue for the School of Economics, and also for Economics 1B and Statistical Methods for Economics.
Teaching team as listed in the module materials reviewed. AskSia does not rate lecturers; star ratings are submitted by students who have taken ECNM08027.
Formula & concept sheet
The vocabulary and formulas you must own
- Cost-benefit reasoning
- Comparing what an action gains against what it costs, including what is given up.
- Budget constraint
- The set of bundles affordable at given prices and income; one half of the consumer's problem.
- Preferences
- The ranking of bundles a consumer holds; the other half of the problem.
- Constrained optimisation
- Maximising an objective subject to a constraint, the standard method for deriving demand.
- Elasticity
- The responsiveness of quantity to a price change, and the link between price changes and revenue.
- Consumer surplus
- The gap between what consumers would have paid and what they did pay; the basic welfare measure here.
- Expected value
- The probability-weighted average of monetary outcomes.
- Expected utility
- The probability-weighted average of the utilities of outcomes, which is what a risk-averse chooser maximises.
- Certainty equivalent
- The certain amount that leaves you as well off as a gamble; below its expected value when risk-averse.
- Asymmetric information
- One party knowing more than the other, which can degrade market performance.
- Bounded rationality
- Decision-making limited by information, time and cognitive capacity, studied here as a systematic departure.
Common acronyms: {'term': 'SCQF', 'def': 'Scottish Credit and Qualifications Framework'} · {'term': 'ECTS', 'def': 'European Credit Transfer and Accumulation System'} · {'term': 'DRPS', 'def': "Degree Regulations and Programmes of Study, the university's course catalogue"}.
Set texts
The prescribed reading
The syllabus references map straight onto these.
Microeconomics and Behaviour, 4th UK edition
Frank and Cartwright.
Maths for Economics
Renshaw.
Where it fits
Prerequisites, related modules & why it matters
No prerequisites. AS level Mathematics at Grade B, or Higher at Grade B, or equivalent, is recommended, and this recommendation is stated for visiting students who may enrol in Semester 1. Enrolment is restricted to first-year students on the economics and economics-joint degree programmes.
Your ECNM08027 study toolkit
Study the module with Sia, not just read about it
Each tool already knows ECNM08027: your syllabus, your texts, and where the marks are. Grouped by how you study, from first contact to exam week.
FAQ
Frequently asked questions
Is this the same as Economics 1?
It is the replacement. Economics 1 is not delivered in 2026/27; the full-year 40-credit course has been split into Economics 1A in Semester 1 and Economics 1B in Semester 2, each 20 credits.
How is Economics 1A assessed?
Degree exam 70%, class exam 20%, weekly homework and quizzes 10%.
Should I take this or Economic Principles?
Economics 1A if you intend to continue economics into Year 2. It is the calculus-based route. Students wanting a less mathematically intensive introduction are directed to Economic Principles and Economic Applications.
What mathematics is required?
AS level Mathematics at grade B or equivalent is recommended. The techniques themselves, from optimisation to basic probability, are developed within the course and applied to economic contexts.
What are the textbooks?
Frank and Cartwright, Microeconomics and Behaviour, 4th UK edition, with Renshaw's Maths for Economics suggested for mathematical support.
Can anyone enrol?
No. Enrolment is restricted to first-year students on the economics and economics-joint degree programmes listed in the catalogue. Semester 1 visiting students may also enrol.
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