Researchers Find Concentration (Short of Monopoly) in Labor Markets Depresses Wages

``The effect of increasing product market concentration on the labour market is sometimes overlooked because the labour market is often assumed to be entirely competitive. This column discusses the definition of labour markets and analyses the circumstances in which employers have monopsonist power to set wages, thus contributing to the growing debate over whether market concentration might be one cause of stagnant wages and other labour trends. ''