The double coincidence of wants problem is solved by
A) credit markets.
B) government intervention.
C) the use of money.
D) specialization.
C
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The formula for the CPI is
A) (Cost of CPI market basket at base period prices ÷ Cost of CPI market basket at current period prices) × 100. B) (Cost of CPI market basket at current period prices ÷ Cost of CPI market basket at base period prices) × 100. C) (Cost of CPI market basket this year × Cost of CPI market basket at base period prices) × 100. D) (Cost of CPI market basket this year × Cost of CPI market basket at base period prices) ÷ 100. E) (Cost of CPI market basket at current period prices ÷ Cost of CPI market basket at next year's prices) × 100.
The demand for bus rides is a downward-sloping straight line demand curve. The price elasticity of demand for bus rides ________
A) increases as the price of a bus ride falls B) decreases as the price of a bus ride falls C) is the same no matter what the price of a bus ride D) decreases as the price of a bus ride rises