Halfway through a principles course the diagrams stop being about a whole market and start being about a single firm, and that is where the failure rate climbs. The Exploration of Economics, International Edition, 6th Edition by Robert L. Sexton moves from cost curves to perfect competition, monopoly and imperfect competition, then into money and stabilization policy. Each new structure reuses the same axes with a different decision rule, and the resulting confusion — average cost read as marginal, price read off the wrong curve — accounts for most of the marks lost in the second half.
Why this test bank helps
These chapters punish approximate reading of a graph. Every question here is followed by a written rationale that says which curve the answer is read from and why — that the profit-maximizing quantity comes from marginal revenue and marginal cost, that price is read up to demand, that profit is judged against average total cost. Being corrected on those readings repeatedly is what turns four similar-looking diagrams into four distinct arguments.
What’s inside
- Questions covering the firm, market structure, money and policy chapters in the book’s own order.
- Multiple choice, true/false and diagram-based items, including short profit and cost calculations.
- A written rationale under every question, naming the curve or rule that produces the answer.
- Attention to the differences between structures, where students most often carry a rule across wrongly.
- One organized PDF, downloadable the instant checkout completes.
Topics covered
- Production and costs — diminishing returns, fixed and variable costs, and the shape of short-run and long-run cost curves
- Perfect competition — price taking, the marginal cost supply rule, shutdown decisions and long-run entry and exit
- Monopoly — marginal revenue below price, output restriction, deadweight loss, price discrimination and regulation
- Monopolistic competition — product differentiation, excess capacity and the erosion of profit in the long run
- Oligopoly and strategy — interdependence, collusion, cartels and simple game-theoretic reasoning
- Money and banking — functions of money, fractional reserve banking, deposit creation and the central bank
- Monetary and fiscal policy — policy tools, aggregate demand effects, lags and the limits of stabilization
- Open economy topics — trade, exchange rates and the balance of payments in a principles framework
Who it’s for
Students taking principles of economics from the sixth international edition, especially those entering the second half of the sequence, and business majors who need firm-level analysis before an intermediate course.
How to use it (the right way)
Redraw each diagram from a blank page before you attempt questions, labelling every curve, since the exam tests whether you can read the graph rather than recognize it. Then work a block closed-book and read the rationale for each item you got wrong or guessed. This is a study aid. Use it in line with your institution’s academic-integrity policy — for revision and self-testing, never as a shortcut around the coursework and never inside a graded assessment.
Sample question (shows the format — your download contains the full set)
Q. In long-run equilibrium under monopolistic competition, what is true of a typical firm?
- A. It earns positive economic profit because its product is differentiated
- B. It produces where price equals marginal cost
- C. It earns zero economic profit and produces with excess capacity
- D. It produces at the minimum of its average total cost curve
Answer: C. Free entry competes economic profit away until price equals average total cost, but because the firm faces a downward-sloping demand curve that tangency lies to the left of minimum average total cost, leaving unused capacity. A ignores entry, which is what removes profit in the long run. B describes perfect competition; here price exceeds marginal cost. D describes the efficient scale reached only under perfect competition.
Edition & format
- Matches: The Exploration of Economics, International Edition, 6th Edition, by Robert L. Sexton (ISBN 9781111970383).
- Format: Digital PDF, delivered instantly after checkout.
- Access: Lifetime — re-download from your account whenever you need it.
Chapter order and applied boxes are revised between editions. Please confirm the edition and ISBN above match the book listed on your syllabus before buying.
Frequently asked questions
Is this the current edition? This set is prepared for the sixth international edition, ISBN 9781111970383. Earlier editions are listed separately because their chapter coverage differs.
How do I receive it? The download is available the moment checkout completes and remains in your account afterwards.
Do all the questions include rationales? Yes. Each item carries a written explanation of the decision rule behind the answer.
Is using a test bank allowed? Used as a study aid it is an ordinary revision resource. Follow your institution’s academic-integrity policy and keep it out of graded assessments.
More study material for this subject is in Economics Test Banks.
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