Refer to the table below. Busy Betty sells her cakes for $20 each and her constant marginal cost to produce each cake is $12, which is equal to her (constant) average total cost. What is her expected marginal benefit from holding the 21st cake in inventory?
The above table shows the probability distribution of cake sales at Busy Betty's Bakery.
A) $6.10
B) $7.20
C) $6.40
D) $8.00
C) $6.40
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Relative to an environment with free trade and no tariff, the winners from the tariff are the domestic ________, and the losers from the tariff are the domestic______. 
A. consumers of sugar and the government; producers of sugar B. producers of sugar; consumers of sugar and the government C. consumers of sugar; producers of sugar D. producers of sugar and the government; consumers of sugar
Which of the following best describes the response of output as time passes to an increase in the saving rate?
a. The growth rate of output does not change. b. The growth rate of output increases and gets even larger as time passes. c. The growth rate of output increases and does not change as time passes. d. The growth rate of output increases, but diminishes to its former level as time passes.
Which of the following provides a strong incentive to supply dollars on the foreign exchange market?
A. To invest in U.S. assets B. To take advantage of higher inflation rates in other countries C. To purchase goods and services produced abroad D. To get a lower return paid on foreign currencies that is not subject to the risk associated with exchange-rate fluctuations
The deficit can be defined in simple terms as
A. tax receipts ? government expenditures + transfers. B. tax receipts + government expenditures + transfers. C. government expenditures + transfers ? tax receipts. D. government expenditures ? transfers ? tax receipts.