Final answer:
No set of activity pools will be identical when comparing a company to other companies due to unique business strategies and structures. Diligent monitoring and investment strategy often leads to better portfolio performance compared to random selections without attention to financial news.
Step-by-step explanation:
When comparing a company to other companies, something that no set of activity pools will be is identical. Even within the same industry, companies have different strategies, structures, and processes. For example, costs involved in producing cars will look very different from the costs involved in producing computer software, haircuts, or fast-food meals.
In an investment scenario, if you are monitoring your selected companies, tracking prices, current events, and actions they take, you're more likely to be responsive to changes and adjust your portfolio as needed. Contrarily, your friend's random selections and lack of attention could result in missed opportunities for optimization or failure to mitigate losses, leading to an under-performing portfolio.