What are the different methods to measure industry concentration?

a. Four-firm concentration ratio.
b. HHI index.
c. Total output
d. a and b only


d

Economics

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In a closed economy, public saving is equal to which of the following? (Y = GDP, C = Consumption, G = Government purchases, T = Taxes, and TR = Transfers)

A) Y - C - T + TR B) Y - G - T C) T - G - TR D) Y - C - T Scenario 21-1 Consider the following data for a closed economy: Y = $12 trillion C = $8 trillion I = $2 trillion G = $2 trillion TR = $2 trillion T = $3 trillion

Economics

The Argentine banking crisis of 2001 resulted from Argentina's banks being required to

A) purchase large amounts of government debt. B) pay back the value of failed loans. C) make risky real estate loans. D) make loans to only state-owned businesses.

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Some years ago New York City imposed rent controls in an effort to provide housing at "fair" prices for as many people as possible. The result was a serious shortage of housing and deterioration of existing rental properties. How would an economist have described the result in terms of economic efficiency?

Economics

If a hurricane were to wipe out the majority of the eastern seaboard in the United States:

A. neither the short-run nor long-run aggregate supply curves would be affected. B. only the long-run aggregate supply curve would shift left. C. only the short-run aggregate supply curve would shift left. D. the long-run and short-run aggregate supply curves would both shift left.

Economics