Ravi notices that all of his neighbors who own cats are also divorced, and concludes that cat ownership must result in divorce. Ravi is
A. describing regression discontinuity.
B. correct in his analysis.
C. confusing correlation and causation.
D. describing difference-in-differences.
Answer: C
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If the credit supply curve of an economy shifts to the left and the credit demand curve remains unchanged, ________
A) its real interest rate will rise B) its real unemployment level will fall C) its real interest rate will fall D) its real output will increase
In China, firms owned by the government are known as
A) state-owned enterprises (SOEs). B) government enterprises. C) corporations. D) government owned partnerships.
The discount rate is the interest
A. rate at which the central banks lend to the United States Treasury. B. rate at which the Federal Reserve Banks lend to commercial banks and thrift institutions. C. yield on long-term government bonds. D. rate at which commercial banks and thrifts lend to the public.
Jim and Fred are the only two cashiers employed at a retail store. Each of them works the same 40 hours per week and each can check out 30 customers per hour by manually entering the price of each product purchased into the cash register. The store owner replaces the old cash registers with new ones that automatically scan product prices into the register. With the new cash registers, Jim and Fred can each check out 60 customers per hour. Their average labor productivity as a team before the new cash registers were introduced was ________ customers per hour and ________ customers per hour after the new machines were installed.
A. 1,200; 2,400 B. 30; 120 C. 30; 60 D. 60; 120