Final answer:
The reference materials do not specify the exact percentage of ethnically diverse companies outperforming their industry median. General research indicates a positive correlation between diversity and company performance, with some studies showing that companies with higher diversity are more likely to outperform less diverse firms.
Step-by-step explanation:
Your question pertains to how ethnically diverse companies perform compared to their industry median. Unfortunately, none of the provided reference materials specifically state the percentage of ethnically diverse companies that are more likely to outperform their industry median. However, numerous studies have emphasized the positive impact of diversity on a company's performance, innovation, and decision-making processes
For instance, while the provided information reveals increasing demographic diversity in the U.S., such as a rise in the percentage of Hispanics and more women advancing in their careers, it does not provide exact figures for company performance. To answer questions about the benefits of diversity in the corporate world, studies such as those by McKinsey & Company have found that companies in the top quartile for ethnic diversity were likely to outperform less diverse companies. These studies suggest that diversity can lead to improved financial performance and competitive advantages.
While this answer does not cite a specific percentage, it acknowledges the positive correlation between workforce diversity and company performance, as supported by research in the field of business management and organizational studies.