Can a corporation's annual profit be predicted from information about the company's CEO? Each year Forbes publishes

Question:

Can a corporation's annual profit be predicted from information about the company's CEO? Each year Forbes publishes data on company profit (in $ millions), CEO's annual income (in $ thousands), and percentage of the company's stock owned by the CEO. Consider a model relating company profit (y) to CEO income (x1) and stock percentage (x2). Explain what it means to say that "CEO income x1 and stock percentage x2 interact to affect company profit y."