Conventional Wisdom Has Long Held That Diversification of a Stock

question 19

Essay

Conventional wisdom has long held that diversification of a stock portfolio should be across industries. Does the correlation coefficient indirectly recommend the same thing?

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Definitions:

Price Elasticity

A measure of how much the quantity demanded of a good responds to a change in the price of that good, expressed as the percentage change in quantity demanded divided by the percentage change in price.

Midpoint Formula

A method for calculating the percentage change in a variable by dividing the change by the average of the initial and final values, often used in economics to measure elasticity.

Labor Supply

The total hours that workers are willing and able to work at a given wage rate, in a given time period.

Elastic

In economics, elastic refers to how the quantity demanded or supplied of a good responds to changes in its price; high elasticity indicates sensitivity to price changes.