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Public and private sector wages in The Netherlands : or the vital role of unobserved heterogeneity
Hartog, Joop, (1989)
Public and private sector wages in the Netherlands
Hartog, Joop, (1993)
A modified switching regression model for earnings differentials between the public and private sectors in the Netherlands
Ophem, Hans van, (1993)
Europe: the 1990s and beyond
Hoek, M. P. van der, (2003)
The European Union : Eastern enlargement and taxation
Hoek, M. P. van der, (2004)
Romania and the European Union enlargement
Hoek, M. P. van der, (2006)