When choosing a source of finance, a business weighs cost, flexibility, the need to retain control, the use of the finance, and its existing debt. The need to retain control is sometimes the dominant concern, but whether it should be the main factor depends on the business and its owners.
The case that control should be the main factor. For many owners, keeping ownership and decision-making power is the whole point of the business. Selling shares brings in new owners who vote, share profit, and can dilute the founders' control β and for a plc this can even lead to a hostile takeover. An entrepreneur who has built a business and wants to keep their vision intact may rightly treat control as the overriding factor, choosing loans, retained earnings or leasing over equity even if these cost more. Where independence is central to the owners' objectives, protecting control can be the most important consideration.
The case that other factors should dominate. First, the use and time period is more fundamental to the firm's survival: a source that does not match the need (a factory funded by an overdraft) endangers cash flow regardless of control. Second, cost can be decisive: very expensive finance can make a project unviable, so a firm with tight margins must prioritise cost. Third, the level of existing debt can remove the choice entirely β a highly geared firm may be unable to borrow, so it has to accept equity and the loss of control whether it likes it or not. Fourth, flexibility matters most for firms with fluctuating needs. In all these cases, control is secondary to the practical realities of getting the right finance at all.
Weighing it up (criterion). Whether control should be the main factor depends on how strongly the owners value independence relative to the firm's financial constraints and the suitability of the finance for its purpose. For an owner-managed firm whose objective is independence and that can fund itself by debt or internal sources, control should indeed be the main factor. For a firm whose survival or growth depends on raising the right finance β where existing debt, cost or matching the purpose constrain the options β those factors must come first, even at the cost of some control.
Judgement. The need to retain control should be the main factor only when the owners genuinely prize independence and the firm has the option to fund itself without giving up control. Where finance is constrained by existing debt, cost, or the need to match a source to its purpose, those factors should dominate, because they determine whether the business can obtain suitable finance at all. So control is the main factor in some situations but not as a general rule; the most defensible position is that the main factor is whichever one most threatens the firm's ability to meet its objective in its specific situation β for some firms that is control, for others it is cost, purpose or existing debt.