Regulated (regulated, controlled) market

What is a regulated market?
A regulated market is a market that is subject to some degree of government or established public authority supervision or control. Most financial exchanges (such stock market) are regulated, but the OTC market is usually only less regulated or not regulated at all.
Where have you heard of regulated markets?
As an investor, you should be aware of the regulations that affect your financial advisor and the markets in which you invest, such as the stock or commodity markets. Proposed or existing regulations are discussed in the financial press, and interest groups lobby against increased "regulation".
What you need to know about regulated markets...
Until recently, financial markets began to self-regulate, making their own rules, usually enforced by a committee of financial practitioners. Even before the financial crisis, regulatory rules were in flux. For example, the European Union's Markets in Financial Instruments Directive (MiFID) was first enacted in 2004. Since the financial crisis, financial markets in Europe and North America have become increasingly regulated, with detailed rules for everything from business practices to reporting on market positions. Only one-to-one transactions (such currency or money market instruments) are rarely affected.