The following table lists the sales of the banks in the area.
Bank Name |
Sales |
MegaBank |
1,100 |
City Bank |
950 |
Nationwide Bank |
845 |
Atlantic Bank |
785 |
Bulk Bank |
665 |
Metropolitan Bank |
480 |
American Bank |
310 |
Hometown Bank |
260 |
Urban Bank |
140 |
(a) Please calculate the Herfindahl- Hirschman index and the 4-firm concentration ratio.
(b) Assume that Hometown Bank and Urban Bank, being the two smallest banks in the region, decide to get together and merge. After the merger, what is the 4-firm concentration ratio and the Herfindahl-Hirschman index. Please show your calculations.
(might be easier to solve if you do this in Excel)
(c) Is the government more likely to object to the merger analyzed in (b) or a merger between MegaBank and City Bank? Please explain, without calculating any further ratios.
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