Consider the following three stocks: 
The value-weighted index constructed with the three stocks using a divisor of 100 is
Definitions:
Rational Persons
Individuals who use reason and logic to make decisions, typically in economic theory, assuming that people aim to maximize their self-interest.
Correctness
The quality or state of being free from errors, inaccuracies, or faults.
Milton Friedman
An American economist known for his strong belief in free-market capitalism and for being a leading proponent of the efficiency of markets and the reduction of government intervention.
Social Obligation
The responsibility or duty of an individual or organization to act in the best interests of society at large, often beyond legal requirements.
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