The origins of fiscal capacity have traditionally been linked to warfare and democratization. However, non-democratic states also invest in fiscal capacity, even in times of peace. In fact, the majority of income taxes-a cornerstone of government finance-were introduced by non-democratic states...

Although the effect of fiscal drag is well studied in the industrialized world, empirical evidence from developing economies remains limited. Against this backdrop, this study aims to explore the effect of fiscal drag on income distribution and work incentives. To this end, the study employs...

Establishing an equitable and efficient tax system is essential for reducing poverty, combating inequality, and fostering sustainable economic growth. Rwanda's government has recognized this and implemented significant changes to the personal income tax schedule for 2023 and 2024 as part of...

In this paper we explore South Africa's personal income tax system using two microsimulation models. The first, SAMOD, simulates personal income tax and social benefits using a dataset derived from the nationally representative National Income Dynamics Study survey. The second, PITMOD, simulates...

We synthesize the findings from several recent papers on South Africa's very high income inequality. These papers use new datasets—including income tax data—and new empirical methods to investigate the drivers of household income and individual earnings inequality in South Africa. Increased...

South Africa exhibits extreme levels of income inequality and is ranked as one of the most unequal countries in the world. In order to measure these severe levels of inequality, it matters how we account for the different parts of the income distribution. Although the approach has gained...

Despite South Africa's need for inclusive economic growth, we find that the income trajectories of the rich continue to diverge from the rest of the income distribution. We combine household survey data and tax data (which, unlike household survey data, includes accurate data for the very rich)...

Tax administration statistics now provide considerably more complete and reliable measures of South African personal income and its distribution than the available household or other survey sources. However, there are difficulties in using tax data across time, as both policy and reporting...

We investigate the behavioural responses of individual taxpayers to changes in marginal personal income tax rates applying empirical bunching methodology to tax administrative data from Zambia over the period from 2014 to 2021. We find evidence for excess bunching at the first kink in the tax...

In this paper we explore options for augmenting South Africa's personal income tax revenue using two microsimulation models: PITMOD simulates the personal income tax system and is underpinned by a dataset comprising a full extract of anonymized individual-level administrative tax data; and SAMOD...