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We revisit Wagner’s law by function of government expenditure. Using data of 14 European countries between 1996 and 2013, we apply panel data and SUR methods to assess public expenditure–income elasticities. We find that some functions of government spending for a few countries (e.g. Austria, France, the Netherlands and Portugal) validate Wagner’s law. For the Netherlands, expenditures with environment protection increase more than proportionately to economic growth, and for France that is the case of spending in housing and community amenities. In addition, Greece is the only country where two public spending items react more than one to one to growth. info:eu-repo/semantics/publishedVersion

In this paper, six versions of Wagner's Law were empirically tested employing aggregate annual time-series data on nine Caribbean countries. The results indicate that a long-run equilibrium relationship between income and government expenditure does not exist for the countries studied, with the exceptions of Grenada, Guyana and Jamaica for a particular formulation of Wagner's Law. However, the direction of causality runs from income to government expenditure only for Guyana, while for the other two, the causality runs in the other direction. Results for short-run causality are mixed, but the predominant causal relationship appears to run from income to government expenditure. In light of the empirical results in this paper, one may tentatively conclude that Wagner's Law finds broad support in these islands. These results run counter to what has been previously reported for a subset of the islands studied in this paper.

This paper re-examines Wagner's hypothesis of an expanding government sector with progress of the economy using advanced econometric techniques such as cointegration and exogeneity tests not used in previous empirical studies. This study also uses much longer time series data for the USA than previously utilized. The empirical results based on cointegration and exogeneity tests provide strong support for the hypothesis for the USA.

The long-run tendency for government expenditure to grow relative to GNP, Wagner's law, is tested for six European countries using data from around the mid-19th century to 1913. With few exceptions the results suggest that: nominal and real GNP, nominal and real government expenditure, and population were nonstationary in their levels but stationary in first differences; either nominal GNP and nominal government expenditure and/or real GNP and real government expenditure were cointegrated in five of the six countries, and that these variables were cointegrated with population in the remaining country; and Granger-causality was mainly unidirectional from income to government expenditure. Thus, there is considerable support for Wagner's law in 19th century Europe.