Answer :
Answer: Over-diversification
Explanation:
According to the given question, the Over-diversification is one of the concept in the business in which the an organization make a large number of investment of the different types of asset where the expectation of the marginal cost become high.
Greg is one of the leading company CEO and for the growth of the company he has decided for acquiring some small chemical firms for increase the productivity but the shareholder are not happy with this due to the over-diversification concept.
The over-diversification also increase the risk in the investment process but there is always high possibility of marginal benefit in the business. Therefore, Over-diversification is the correct answer.