= (CAPM)

The theory that in a well-diversified portfolio of assets the valuation of a security depends not only on its own returns, but on how it contributes to overall risk. The value of a security will be higher, the lower its beta coefficient; this measures the relation between returns on a particular security and returns on the overall market portfolio.

• organizational slack
• Organization for Economic Cooperation and Development
• Organization of Petroleum Exporting Countries
• organized labour
• organized sector
• origin
• oscillation
• oscillatory function
• other things being equal
• outcry, open
• outflow, capital
• outlier
• output
• output-capital ratio
• output effect
• output-input
• output method
• output per hour worked
• output per manhour
• outside money
• outsiders and insiders
• outsourcing
• over-capacity working
• overdraft
• overfull employment