Private equity typically refers to investment funds, generally organized as limited partnerships, that buy and restructure companies that are not publicly traded. Private equity is, strictly speaking, a type of equity and one of the asset classes consisting of equity securities and debt in operating companies that are not publicly traded on a stock exchange. However, the term has come to be used to describe the business of taking a company into private ownership in order to restructure it before selling it again at a hoped-for profit. A private equity investment will generally be made by a private equity firm, a venture capital firm or an angel investor. Each of these categories of investors has its own set of goals, preferences and investment strategies; however, all provide working capital to a target company to nurture expansion, new-product development, or restructuring of the company’s operations, management, or ownership.Bloomberg Businessweek has called "private equity" a rebranding of leveraged-buyout firms after the 1980s. Common investment strategies in private equity include leveraged buyouts, venture capital, growth capital, distressed investments and mezzanine capital. In a typical leveraged-buyout transaction, a private-equity firm buys majority control of an existing or mature firm. This is distinct from a venture-capital or growth-capital investment, in which the investors (typically venture-capital firms or angel investors) invest in young, growing or emerging companies, and rarely obtain majority control. Private equity is also often grouped into a broader category called private capital, generally used to describe capital supporting any long-term, illiquid investment strategy. The key features of private equity operations are generally as follows.