This paper studies the interactions between wages in the public sector, the traded private sector and the sheltered private sector in ten EU Transition Countries and its relationship to international competitiveness during the decade 2000-2010. The theoretical literature on wage spillovers suggests that the internationally traded sector should be the leader in wage setting, with sheltered and public sector (the non-traded sector) wages adjusting. Using a Cointegrated VAR approach we show that a large heterogeneity across countries is present, with non-traded sectors wages often being leaders in wage determination or at least affecting traded sector wages in the short run. In some countries, public sector wages are weakly exogenous, with the private sectors adjusting. This result is relevant from a policy perspective since wage spillovers, leading to costs growing faster than productivity, may affect the international cost competitiveness of the traded sector.
IntroductionThe aim of this paper is to study the interactions and spillovers between wages in different sectors. In particular, we analyze the interplay in wage determination in three broad sectors: the open (internationally traded) sector, the closed or "sheltered sector", which can also be called the market non-traded sector, and the public sector, also called the non-market non-traded sector. The focus of this work is on Central and Eastern European Countries (CEEC) that have recently joined the European Union. This issue is relevant for several reasons. First, public sector employment is large and relevant: in the OECD, around 25% of the work force is employed in the public sector. Second, wage spillovers across sectors may lead to wage costs growing faster than productivity and this may affect the international cost competitiveness of the country's tradable sectors. In particular, theoretical models generally assume that the traded sector is leader in wage determination and there is mobility of labour across sectors which, in turn, ensures wage equalization. This is assumed, for example, by Froot and Rogoff [1995] and the so-called Scandinavian Model of wage determination (Aukrust [1970], see Section 3). If these models hold, during the process of catching-up excess inflation will be witnessed and the real exchange rate will appreciate, but, on the other hand, only wages in the non-traded sector should grow faster than productivity and therefore competitiveness should not be harmed. However, it can also happen that wage bargaining in the non-traded sector -which is not subject to international competition -and in the public sectorwhich is influenced by political rather than productivity considerations -may lead to higher outcomes and, in turn, push traded sector wages up. Testing wage leadership in the case of transition countries is important because they are in the process of catching up: entry in the EU, which also fostered international labour mobility, is likely to have influenced wage determination in these countries, and it is possible...