SocioEconomic and Political Effects on Social Protection Expenditures: Empirical Evidence from OECD Countries

Abstract

Using cross-section of 20 OECD panel from 1995 to 2003, this paper examines the effects of both socioeconomic and political factors on social protection expenditures. Among the socioeconomic factors, population aged 65 and above (% of total), unemployment (% of total labor force) and trade openness ((export+import)/GDP) are positive and statistically significant on social protection expenditures (% of government expenditures), respectively. In addition, mean district magnitude is the only variable among all political factors that has a positive and significant impact on social protection expenditures, implying that the importance of social protection increases when the degree of proportionality of electoral systems increases. Regression results also suggest that the impact of political factors are less important than those of the socioeconomic factors on social protection expenditures in the sample of OECD countries.