Like investors, borrowers are concerned about the total net costs (all costs plus all benefits) of different types of finance. One big consideration is government and self-regulation. Compared to most other parts of modern capitalist economies, the financial system is relatively heavily regulated. Regulators like the Securities and Exchange Commission (SEC, which oversees exchanges and OTC markets), the New York Stock Exchange (NYSE, which oversees itself), and the Commodities Futures Trading Commission (CFTC, which oversees futures market exchanges) monitor and regulate financial markets. Other regulators, including the Office of the Comptroller of the Currency (which oversees federally chartered commercial banks), the Federal Deposit Insurance Corporation (FDIC, which oversees almost all depositories), and sundry state banking and insurance commissions, monitor financial intermediaries. Companies that wish to avoid direct regulatory scrutiny due to its high cost tend to use intermediaries rather than markets. For example, instead of selling shares to the public, which would require following the many rules of the SEC and the NYSE (or other exchange or OTC market), a company might decide that it would be cheaper to obtain a long-term bank loan or sell bonds to life insurers, mutual funds, and other institutional investors in a direct placement.

Regulators serve four major functions. First, they try to reduce asymmetric information by encouraging transparencytransparencyIn general, the opposite of opacity. In this context, transparency means a relatively low degree of asymmetric information.. That usually means requiring both financial markets and intermediaries to disclose accurate information to investors in a clear and timely manner. A second and closely related goal is to protect consumers from scammers, shysters, and assorted other grifters. Third, they strive to promote financial system competition and efficiency by ensuring that the entry and exit of firms is as easy and cheap as possible, consistent with their first two goals. For example, new banks can form but only after their incorporators (founders) and initial executives have been carefully screened. Insurance companies can go out of business (exit) but only after they have made adequate provision to fulfill their promises to policyholders.

Finally, regulators also try to ensure the soundness of the financial system by acting as a lender of last resortlender of last resortDuring a financial crisis or panic, a lender of last resort makes loans when no one else will., mandating deposit insurancedeposit insuranceInsurance that pays off if a bank defaults on its deposit liabilities., and limiting competition through restrictions on entry and interest rates. The first two forms of regulation are generally not controversial, although many believe that the lender of last resort function should not be combined with a too big to fail (TBTF) policytoo big to fail (TBTF) policyThe notion that some financial institutions cannot be allowed to go bankrupt because they owe so much money to so many people and companies that their failure to continue making payments would have catastrophic negative consequences for the economy.. Limiting competition is a highly controversial means of ensuring safety because it extends privileges to existing institutions over new ones. Little surprise, then, that the regulated companies themselves are often the strongest supporters of that type of regulation!