How does diversity in the workplace affect the success?

Topic: How does diversity in the workplace affect the success?
Ali- Intro: background info on diversity
Ping- With regards to gender, age, ethnicity, religion, etc. does having more diversity in the work environment increase effectiveness and efficiency, financially?
Jess- Is diversity overall a positive or negative impact? Conclusion

I’m only doing second part:
With regards to gender, age, ethnicity, religion, etc. does having more diversity in the work environment increase effectiveness and efficiency, financially? For the financial part, find some chart or data to explain.