Universal, targeted or both : effects of different child support policies on labour supply and poverty : a simulation study

We study a set of hypothetical reforms of child benefits in Germany, using a static tax-benefit microsimulation model augmented with endogenous labour supply and take-up choices (IAB-MSM). We distinguish between a reform of the universal non-means-tested child benefit, a reform of the mean-tested child benefit under the minimum income scheme, and a combination of both. Since the reforms are associated with different fiscal costs, we consider two different budget closures: an increase in the income tax or a consumption tax. The model simulates the impacts of the reforms on household income, poverty and labour supply. We find that improvements in the means-tested child benefit are well-targeted: They provide a high level of poverty reduction with a low fiscal impact at the cost of reduced labour supply incentives for low-income families. When unconditional benefits are increased, the effect on overall income inequality is more pronounced at the cost of reduced labour supply incentives for middle- and high-income families. Finally, when combined, the two approaches show synergies, particularly in the form of improved poverty reduction.