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Economics, 7/e
David Begg, Birkbeck College, University of London
Rudiger Dornbusch
Stanley Fischer

Introducing supply decisions

Self-test Questions

Select the radio button corresponding to your choice of answer for each question, and then click on "Submit Answers" to find out how many you answered correctly.

1

The following is not a type of firm
A)sole trader
B)ice-cream van
C)partnership
D)company
2

The opportunity cost of a student is
A)course fees and rent
B)a loan from the bank
C)what the student could have earned in the best job available by not studying
D)what the student will earn after graduation
3

Firms are assumed to _________ costs and to _________ profits
A)incur, desire
B)pay, make
C)charge, earn
D)minimize, maximize
4

The increase in total cost when one more unit is produced is known as
A)marginal cost
B)opportunity cost
C)limited cost
D)average cost
5

Marginal revenue is the _________ when output is ____________
A)change in average revenue, increased
B)change in total revenue, increased by one unit
C)change in average revenue, increased by one unit
D)change in total revenue, increased
6

Profits are maximised when _________________
A)costs are minimised
B)revenue is maximised
C)average cost is less than average revenue
D)marginal cost equals marginal revenue
7

If a firm's wage costs increase this will cause __________ and ________
A)marginal cost to increase, output to fall
B)marginal revenue to increase, output to fall
C)opportunity cost to increase, the firm will close
D)average cost will rise, output will increase
8

An upward shift in marginal cost ________output and an upward shift in marginal revenue ________ output
A)reduces, reduces
B)reduces, increases
C)increases, increases
D)increases, reduces
9

If both marginal cost and marginal revenue increase, a firm __________
A)should increase output
B)should reduce output
C)will require further information on how to respond
D)should not change output
10

Companies are run by shareholders and owned by the board of directors
A)TRUE
B)FALSE
11

If a firm is producing a level of output where marginal cost is greater than marginal revenue, it should increase output to maximise profits
A)TRUE
B)FALSE
12

A firm should close down if profits are zero
A)TRUE
B)FALSE