Policy attention to the security industry increased substantially after the terrorist attacks in the U.S. on September 11th, 2001. With an increased demand for security, the global security market grew a tenfold to around €100 billion in 2011. Many studies expect that growth of the worldwide...

The empirical literature on the impact of unions on wages has stressed two major conclusions. Firstly, unionised workers earn a wage premium when compared to comparable nonunionised workers. Secondly, the dispersion of wages within the union sector is lower than in the nonunion sector. We...