Deterrent taxes are a crucial policy tool for reducing the consumption of harmful products like tobacco and alcohol. However, assessing dissuasive taxes impact different income groups is important to ensure that their burden is not disproportionately borne by low-income households. This study examines the effectiveness of deterrent taxes as an economic policy tool for reducing tobacco and alcohol consumption in Cameroon. We analyse the impact on household welfare and distributional effects using microsimulation analysis. The data come from the Cameroon Household Living Conditions Survey and the 2022 tax records. Our methodology is based on a dynamic computable general equilibrium (CGE) model enriched with an addiction model. The results indicate that deterrent taxes can significantly reduce the consumption of these harmful products but also have regressive effects on low-income households. In response, we recommend the adoption of a progressive tax structure and the establishment of targeted support programmes to mitigate the negative impact on vulnerable populations.

Public debt plays a major role in financing projects that support economic growth and sustainable development. As governments may choose between domestic and external borrowing, a comprehensive assessment of their effects would support this choice. Our study provides an integrative view of economic and social outcomes and compares, through externalities, the impacts of external and domestic public debt as methods of financing development, with a focus on the Cameroonian economy. Utilizing a dynamic computable general equilibrium (CGE) model and a microsimulation analysis, we find that domestic debt has more advantages for Cameroon compared to external debt, as it increases the large-scale economic impact by improving household welfare, boosting GDP growth, and progressively reducing poverty and inequality. It is therefore recommended that the Cameroonian government focus on increasing the use of domestic debt as a method of financing development by implementing policies that support domestic saving and promote the development of domestic debt markets.

This article examines the impact of infrastructure progress on the well-being of people in Africa. It uses a composite index of infrastructure development and data on subjective well-being from 32 African countries for the period 2006–2022. Robust estimation methods are used, including generalized least squares and Driscol-Kraay fixed effects. The results show a positive and significant impact of infrastructure development on the well-being of the African population, which is related to the way infrastructure is financed. Based on the results obtained, we recommend strengthening public–private partnerships for infrastructure financing, considering each country's specific needs.