Testing the Buchanan-Wagner Hypothesis: European Evidence from Panel Unit Root and Cointegration Tests

According to the Buchanan-Wagnerhypothesis, public deficits reduce theperceived price of public goods to thecurrent generation of voters who, in turn,increase the demands for such socialservices. Several recent studies haveattempted to test this proposition. In thispaper, we apply modern time seriestechniques organized around panel unit rootand panel cointegration to draw sharperconclusions from the short time series thatare typically available. We find that thereis a long run positive relationship betweengovernment spending and government deficitsfor each country individually, as well asfor the panel as a whole. This providessupport for the BW hypothesis. We alsoanalyze the implications for the relativeproductivity performance of the public andprivate sector, the existence of scaleeconomies in the provision of publicservices, as well as the extent of crowdingout effects.