If a company has gained too great of a market share within an industry, the most effective policy to preserve the protection of the consumer would be to regulate the business by ensuring that any new mergers had government approval.
Here's why this policy would be the most effective:
1. **Preventing Monopolies:** By regulating mergers and acquisitions, the government can prevent a single company from becoming too dominant in the market. This helps promote competition, which often leads to better quality products, lower prices, and more choices for consumers.
2. **Protecting Consumer Interests:** When there is healthy competition in the market, companies are motivated to provide better products and services to attract customers. Regulations that prevent one company from controlling the market excessively help protect consumers from potential price gouging, limited choices, and reduced quality.
3. **Government Oversight:** By requiring government approval for mergers, regulators can assess the potential impact on competition and consumer welfare. This oversight ensures that any consolidation in the industry does not harm consumers or stifle innovation.
In conclusion, regulating the business through government approval of mergers is the most effective policy to maintain consumer protection when a company has acquired too much market power.