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In-work transfers are often seen as a good trade-off between redistribution and efficiency as they alleviate poverty among low-wage households, while increasing financial incentives to work. In the context of the recent economic downturn, they have been advocated to offset the disincentive effect of wage cuts and to cushion the negative redistributive impact of earnings losses and cuts in the minimum wage. We study this double effect for Ireland, a country deeply affected by the economic crisis, and for which existing in-work support policies are of limited scope. The employment and poverty effects of alternative policies are analysed thanks to counterfactual simulations built using a micro-simulation model, the Living in Ireland Survey 2001 and labour supply estimations. We focus on an extension of the existing scheme, the Family Income Supplement and its replacement by the refundable tax credit in force in the United Kingdom.

By the mid-1990s the potential and usefulness of microsimulation models for researching tax-benefit systems had found widespread acceptance. Nevertheless, models were not widely available for independent or academic research in all countries of the European Union (EU). Even more important, carrying out consistent comparative tax-benefit microsimulation analysis was still an apparently impossible task. The time seemed ready for a European-Union-wide tax-benefit microsimulation model. Such a model, EUROMOD, is now available.

This chapter is devoted to a short introduction to EUROMOD, including the reasons why it was built, its added value compared to existing models, the trade-offs faced by its builders and lessons that have been learnt from developing such an integrated model. Moreover, it aims to provide an insight into the wide range of possible applications of EUROMOD, underlined by summarizing some indicative findings of studies, which have used the model.

Individual strategic weight plays an important role in the intra-household allocation of resources; however, empirical studies invariably find such weight difficult to define in a plausible and computable way, given the available data. This paper proposes a framework for the calculation of household members’ strategic weight that can be easily computed using a microsimulation model. The index proposed for each member as the share of resources the household would lose should he or she abandon it. The causes of strategic weight differentials are analysed in four EU countries with significantly different employment structure and tax-benefit systems (Finland, Germany, Italy and the United Kingdom), using EUROMOD, an integrated EU-15 microsimulation model.

The paper aims to assess the effects of taxes and benefits on inequality and poverty in five African countries: Ghana, Mozambique, South Africa, Uganda and Zambia.

The authors use newly developed micro-simulation models to analyse the distribution and composition of incomes.

The study's results suggest that income-based measures result in higher levels of poverty and inequality than consumption-based measures. The country with the most effective system in terms of reducing income inequality and poverty is South Africa; in Ghana, the tax-benefit system was found to have the smallest impact on inequality. The systems of Uganda, Mozambique and Zambia were estimated to have no poverty-reducing properties; many individuals remain largely unaffected by them as they are too poor to pay direct taxes, and benefits are very modest and narrowly targeted.

While consumption data are crucial for measuring poverty, income data are becoming vital for assessing the extent to which tax-benefit policies achieve redistribution in economies where own-consumption is becoming less significant and the share of people in employment is increasing. To the best of the authors' knowledge, this is the first study where poverty and inequality are measured in both terms, for several African countries in a common framework.

European countries have the world’s most redistributive tax and transfer systems. While they have been well equipped to deal with vertical inequality – fostering redistribution from the rich to the poor – less is known about their performance in dealing with horizontal inequality, that is, in redistributing across socioeconomic groups. In a context where individuals may not only care about vertical redistribution, but also about the economic situation of the specific groups they belong to, the horizontal dimension of redistribution becomes politically salient and can be a source of social tensions. The authors analyse the performance of the 28 EU countries for redistribution across (i) age groups; (ii) occupational groups; and (iii) household types over the period 2007–2014 using counterfactual simulation techniques. We find a significant degree of heterogeneity across countries: changes in the tax and transfer system have particularly hit the young and the losers of occupational change in Eastern European countries, while households with greater economic security have benefited from these changes. The findings of this study suggest that horizontal inequality is a dimension which policy-makers should take into account when reforming tax and transfer systems.

As unemployment rises across the European Union (EU), it is important to understand the extent to which the incomes of the new unemployed are protected by tax–benefit systems and to assess the cost pressures on the social protection systems of this increase in unemployment. This chapter uses the EU tax–benefit model EUROMOD to explore these issues, comparing effects in five EU countries. It provides evidence on the differing degrees of resilience of the household incomes of the newly unemployed due to the variations in the protection offered by the tax–benefit systems, according to whether unemployment benefit is payable, the household situation of the unemployed person and across countries.