Isabelle Wanner

Product Market Regulation: Extending the Analysis Beyond OECD Countries

In this paper the recently updated product market regulation (PMR) indicators are extended to a larger set of countries including several non-OECD members. It investigates regulatory patterns in this extended set of countries as compared to the OECD countries and analyses the link between regulation and growth. On average, regulation is more restrictive of competition in non-member countries than in the OECD area. However, there exists considerable heterogeneity within this country grouping as concerns the level of the regulatory stance and its composition as well as the potential past evolution of regulatory processes. Furthermore, growth regressions provide evidence that less restrictive product market regulation is conducive to growth. An improvement of ½ index points of barriers to entrepreneurship would translate into approximately a 0.4% higher average annual rate of GDP per capita growth. However, the results also suggest that for countries that are less advanced, the potential growth benefits of enhancing product market competition may be impaired by other structural weaknesses. In particular, some restrictions of foreign trade and investment might be beneficial for growth in early stages of development.

Ten Years of Product Market Reform in OECD Countries

This paper describes patterns and developments of regulation that potentially affect product market competition in OECD countries over the past decade. It uses the 2008 update and revision of the OECD indicators of product market regulation (PMR) that integrate to a larger extent than in the past information on sector-specific regulation and adapt a simpler and more transparent aggregation technique. The results show that OECD countries have extensively liberalised product markets over the past ten years and – as a consequence - convergence of regulation across OECD countries can be observed. However, reforms appear to have slowed in the most recent period (2003-2008) as compared with the earlier period (1998- 2003). Easing of product market regulation appears to have been driven to a considerable extent by reforms in sector-specific regulation, notably as regards the gas, electricity and telecommunications markets. Countries appear also to have followed consistent reform approaches. However, scope for further reform remains, especially as regards controls of governments over businesses, and as regards certain sectors such as professional services and retail trade.

The drivers of labour income inequality -- an analysis based on Bayesian Model Averaging

Many Organisation for Economic Co-operation and Development (OECD) countries have seen income inequality rising over the past decade, which has led to a renewed interest among researchers and policy makers in understanding the causes of income inequality. To shed light on this issue, this article investigates the determinants of labour income inequality for a sample of 22 OECD countries. As model uncertainty is likely to be a major issue in such an underpinning, the empirical analysis relies on a Bayesian Model Averaging (BMA) technique. The results suggest that in particular labour, education and tax policies have an important influence on the distribution of labour income.