The paper studies the relationship between labour taxes and labour costs by modelling the wage formation mechanism in a dynamic context. Findings suggest that there is probably some wage resistance in the short-term but not in the long-term, although the transition to the long-term can be very long and therefore the short-term impact and the dynamics of adjustment can be long-lasting.
Link
http://econwpa.wustl.edu:80/eps/pe/papers/0411/0411004.pdf