Question

In: Economics

Suppose Fiat recently entered into an Agreement and Plan of Merger with Case for $4.3 billion....

Suppose Fiat recently entered into an Agreement and Plan of Merger with Case for $4.3 billion. Prior to the merger, the market for four-wheel-drive tractors consisted of five firms. The market was highly concentrated, with a Herfindahl-Hirschman index of 2,685. Case’s share of that market was 9 percent, while Fiat comprised just 5 percent of the market. If approved, by how much would the postmerger Herfindahl-Hirschman index increase? Based only on this information, is the Justice Department likely to challenge the merger according to the Horizontal Merger Guidelines? No. Yes. Possibly - but other factors will be considered

Solutions

Expert Solution

The Post Merger Herfindahl-Hirschman index will increase by 90 Points

Explanation:

Herfindahl-Hirschman index or simply the HH Index measures a market's level of competitiveness based on the number of firms participating in the industry.

HH Index has a maximum of 10,000 points for a market that is dominated by one firm and continues to reduce and tend towards 0 as the number of firms with equal sizes in the industry increases. In other words, the increase in an industry's HH Index is a function of the decrease in the number of firms in the industry and the disparities in sizes among the firms in the industry.

For acceptable levels of HH Index, the general consideration is that a market with HH Index between 1,500 and 2,500 has a moderate concentration, while any market with HHI higher than 2,500 points is highly concentrated.

To the Question,

the Success of the Merger between Fiat and Case would reduce the number of firms in the market and this will lead to an increased HHI,
The formula for increase in HH Index=
=10,000 (Maximum HHI Points) [(9% (Case's Market Share + 5% (Fiat's Market Share)^2 - (9%)^2- (5%)^2]
= 10,000 [(0.09 + 0.05)^2 - (0.09)^2 - (0.05)^2]
=10,000 (0.009)
=90 Points
This means the Post Merger HH Index will increase by 90 Points from 2,685 to 2,775 (2,685+90)


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