This paper presents two ‘non-welfarist’ approaches and one ‘welfarist’ approach to decompose changes in inequality and social welfare into three components: population, tax policy and labour supply effects. As an illustration, changes in inequality and in values of a social welfare...

Extensive research has shown that few robust results regarding the optimal tax structure are available. Moreover, the stylised models used in optimal tax analyses are not appropriate for practical policy advice. This paper proposes a method of examining optimal marginal income tax reforms using...

This paper examines the role of the tax-free income tax threshold in a complex tax and transfer system consisting of a range of taxes and benefits, each with their own taper rates and thresholds. Considering a range of tax and benefit systems, particularly those having benefit taper rates...

This paper examines the role of the tax-free income tax threshold in a complex tax and transfer system consisting of a range of taxes and benefits, each with their own taper rates and thresholds. Considering a tax and benefit system with benefit taper rates whereby some benefits are received by...

This paper presents a method of computing welfare changes (compensating and equivalent variations) arising from a tax or social security policy change, in the context of behavioural microsimulation modelling where individuals can choose between a limited number of discrete hours of work. The...

This paper presents two 'non-welfarist' approaches and one 'welfarist' approach to decompose changes in inequality and social welfare into three components. We distinguish the contributions of population, tax policy and labour supply behavioural effects. As an illustration, we decompose changes...

This paper presents a method of predicting individuals’ welfare changes (compensating and equivalent variations) arising from a tax or social security policy change in the context of behavioural microsimulation modelling, where individuals can choose between a limited number of discrete hours...

This paper describes the project of building a micro-macro model for South Africa. The aim is to deal with the links between globalisation and poverty or inequality, explaining the effects of trade liberalisation on poverty and inequality. The main issue of interest is the effect of...

This paper contributes to the literature by separately analysing the course enrolment and completion effects of vocational education and training (VET) as well as higher education. Moreover, we investigate the persistence of these wage effects over time while controlling for two potential...