Market participants

A market participant may either be coming from the Supply Side, hence supplying excess money (in the form of investments) in favor of the demand side; or coming from the Demand Side, hence demanding excess money (in the form of borrowed equity) in favor of the Demand Side. This equation originated from Keynesian Advocates.

The theory explains that a given market may have excess cash; hence the supplier of funds may lend it; and those in need of cash may borrow the funds as supplied. Hence, the equation: aggregate savings equals aggregate investments.

The demand side consists of: those in need of cash flows (daily operational needs); those in need of interim financing (bridge financing); those in need of long-term funds for special projects (capital funds for venture financing).

The supply side consists of: those who have aggregate savings (retirement funds, pension funds, insurance funds) that can be used in favor of demand side. The origin of the savings (funds) can be local savings or foreign savings. So much pensions or savings can be invested for school buildings; orphanages; (but not earning) or for road network (toll ways) or port development (capable of earnings).

The earnings goes to owner (Savers or Lenders) and the margin goes to the banks. When the principal and interest are added up, it will reflect the amount paid for the user (borrower) of the funds. Thus, an interest percentage for the cost of using the funds.