Differentiating the workforce: The performance effects of using contingent labor in a context of high-performance work systems

In this study we focus on the impact of contingent labor on the outcomes of high-performance work systems (HPWS). Building on the emerging research on the social mechanisms linking HRM to organizational effectiveness, we argue that a higher incidence of contingent labor diminishes the productivity payoff associated with the use of HPWS for managing standard employees. We test these arguments using a sample of 229 British firms of different industries. The results support our arguments and help develop a more holistic and critical viewpoint in the analysis of workforce differentiation.