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Samantha and Jamaal Both Invest in a Stock Whose Price

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Essay

Samantha and Jamaal both invest in a stock whose price goes from $40 to $50 after one year and $60 the next. Samantha borrowed 25% of the money to invest while Jamaal borrowed none. Find their effective rates of return on the initial price, ignoring the cost of borrowing.


Definitions:

Herfindahl Index

A measure of the size of firms in relation to the industry and an indicator of the amount of competition among them, calculated as the sum of the squares of the market shares of each firm within the industry.

Conglomerate Merger

A type of merger in which firms involved are in unrelated business activities, aiming for diversification and risk minimization.

Vertical Merger

A combination of two or more companies at different stages of production or distribution in the same industry.

Price-Fixing Arrangement

An agreement between participants on the same side in a market to buy or sell a product, service, or commodity only at a fixed price, thereby manipulating market conditions.

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