Please help me solve these five questions. Thanks.1. Describe a four-firm concentration ratio, including an explanation of what it is used for and how it is calculated. Give two examples.2. Describe a market-oriented environmental policy to reduce pollution.3. Describe three examples of market-oriented environmental policies.4. Consider both positive externalities and public goods, briefly explain why private firms or individuals might fail to make expenditures or investments that would produce broad social benefits.5. Describe four factors that likely contributed to the number of workers in the U.S. labor market belonging to unions declining so dramatically since the early 1950s.

This assignment is due on Canvas by Thursday, May 20 at 11:59pm. This assignment is worth 20 points. Essay Questions - 4 points each question. Question One. Look in Chapter 11 of your textbook. Describe a four-firm concentration ratio, including an explanation of what it is used for and how it is calculated. Give two examples. Question Two. Look in Chapter 12 of your textbook. Describe a market-oriented environmental policy to reduce pollution. Question Three. Look in Chapter 12 of your textbook. Describe three examples of market-oriented environmental policies. Question Four. Look in Chapter 13 of the textbook Consider both positive externalities and public goods, briefly explain why private firms or individuals might fail to make expenditures or investments that would produce broad social benefits. Question Five. Look in Chapter 14 of the textbook. Describe four factors that likely contributed to the number of workers in the U.S. labor market belonging to unions declining so dramatically since the early 1950s