Final answer:
The statement about most leading U.S. companies having split their stock is not entirely accurate as it is a generalization; such decisions are made by the company's board of directors and can depend on multiple factors.
Step-by-step explanation:
Regarding the prompt's statement about U.S. companies and stock splits, it's not accurate to say that most leading companies in the United States have split their stock. Stock splits are a decision made by a company's board of directors and can occur for various reasons, such as to make shares seem more affordable to small investors without changing the underlying value of the company. While many prominent companies have done stock splits at various points, saying that most have done so is a generalization that cannot be substantiated without specific data.
As for business decisions regarding issuing stock, paying dividends, or reinvesting profits, such decisions are made by each firm's management team and overseen by the board of directors. These groups determine the company's financial strategies, which are influenced by a variety of factors, including the company's overall performance, market conditions, and long-term business goals.