Under the Concept of an Efficient Market a Random Walk

question 40

Multiple Choice

Under the concept of an efficient market a random walk in stock prices means that:

• A) there is no driving force behind price changes.
• B) technical analysts can predict future price movements to earn excess returns.
• C) the unexplained portion of price change in one period is unrelated to the unexplained portion of price change in any other period.
• D) the unexplained portion of price change in one period that cannot be explained by expected return, can only be explained by the unexplained portion of price change in a prior period.

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Definitions:

Pollution Impact

The adverse effects on the environment and living organisms due to contaminants introduced by human and natural actions.

Premature Deaths

Deaths that occur before the average age of death in a certain population.

Malnutrition

A condition stemming from insufficient, excessive, or imbalanced consumption of nutrients, leading to physical health problems.

Air Quality

pertains to the cleanliness or pollution level of the air in a specific area, often measured by the concentration of pollutants.