The New Power Brokers: How Oil, Asia, Hedge Funds, and Private Equity Are Shaping Global Capital Markets is the result of a six-month research project by the McKinsey Global Institute (MGI). It builds on MGI's previous research on global capital markets as well as on research conducted by McKinsey's private equity practice and global banking practice. In this report, we provide new data and evidence on the size, investment strategies, and future evolution of each of the four new power brokers and explore their influence on world financial markets.