What would the Herfindahl-Hirschman Index equal for an industry consisting of 20 firms with each holding a 5% market share?

The statistical details on the U.S. balance of international payments between 1790 and 1860 help economic historians determine

(a) what the U.S. sold domestically. (b) how other countries paid for their own domestic goods and services. (c) how the U.S. paid other countries for their exports. (d) changes in domestic trade patterns.

Refer to the given figure.In response to gradually falling inflation, this economy will eventually move from its short-run equilibrium to its long-run equilibrium. Graphically, this would be seen as:

A. aggregate demand shifting rightward. B. short-run aggregate supply shifting downward. C. aggregate demand shifting leftward. D. long-run aggregate supply shifting leftward.