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Publications (15)
Technical Note
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– The case of Girinka in Rwanda
SOUTHMOD tax-benefit microsimulation models may in some cases oversimulate taxes or benefits, generating greater expenditure, a greater number of beneficiaries, or greater amounts of taxes or taxpayers than reported in administrative data. Drawing on an example of a social benefit policy in Rwanda...
Governments in low- and middle-income countries face a trade-off between raising tax revenue to strengthen social protection and creating incentives to enter formal employment. In developed countries so called in-work transfers (i.e., social benefits paid upon condition of being employed) have been...
Technical Note
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This note describes methods to derive employment-to-unemployment transition shares across industries during the COVID-19 pandemic and to use these shares in SOUTHMOD tax-benefit microsimulation models to adjust relevant labour market variables. The first method entails the derivation of industry...
Technical Note
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This technical note presents one of the modelling approaches used in Jara and Rattenhuber (2022) to estimate formal employment elasticities, namely the estimation of a discrete choice model of labour supply with informal employment. The approach makes use of ECUAMOD, the tax-benefit model for...
Technical Note
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Agricultural subsidies may have significant productive and distributional consequences, and policy-makers need to be able to assess these impacts as a part of the overall tax and benefit policy. Microsimulation models offer a tool for such analysis also in developing countries, but their coverage...
Technical Note
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This note sets out two different methods on how to adjust incomes in the microdata underlying the standard SOUTHMOD models to reflect a sudden shock, in this case the COVID-19 shock, as done in the accompanying working paper by Lastunen et al. (2021). The note first describes how industry-specific...
Technical Note
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This technical note presents a modelling approach used in Lastunen et al. (2021) where tax and benefit policies are scaled to reflect their actual duration during a single calendar year. It can be applied to tax-benefit microsimulation models implemented in the EUROMOD software. The method is...
Technical Note
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This note describes how the counterfactual datasets in the working paper by Lastunen et al. (2021) have been reweighted, for each country analysed, to the ‘pre-crisis’ time point of 31 March 2020. The procedure consists of five main steps. The note forms part of a series of technical notes that...
Technical Note
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This note, which forms part of a series of technical notes that complement Lastunen et al. (2021), reports the approach used to derive shocks to household expenditures from shocks at the individual-level labour incomes. Its structure is composed by six different parts that describe the technique...
Technical Note
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This note has set out several data processes that have been undertaken using the income data in dataset(s) that underpin SAMOD. Section 1 describes various data-cleaning steps that were undertaken when preparing the LCS 2014/15 as an underpinning dataset for SAMOD. Part 2 elaborates on the process...
Technical Note
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This technical note has been produced alongside a WIDER working paper assessing the effects on income inequality and income tax simulations of adjusting top incomes of employees in survey data based on administrative tax records in Ecuador. The paper and the technical note are based on ECUAMOD...
Technical Note
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This note has been produced alongside a WIDER working paper assessing the effect of the Unemployment Insurance benefit on income protection in Ecuador. The aim of this note is to describe the methodology used to assess the effect of the Unemployment Insurance through the simulation of transitions...
Technical Note
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This note, with emphasis on VAT and excise taxes, illustrates how indirect taxes are modelled in the context of GHAMOD, a tax-benefit microsimulation model for Ghana. GHAMOD is similar to the EUROMOD base platform, and its built-in Statistics Presenter Tool supports simple analyses of ex-ante policy...
Technical Note
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– The case of UGAMOD
This note describes how to incorporate sub-national poverty lines into a SOUTHMOD country model using conditional constants within the constants function in such a way that the Statistics Presenter can generate national-level poverty statistics. The Uganda tax-benefit microsimulation model UGAMOD is...
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