Paulo Drummond

Mobilizing Revenue in Sub-Saharan Africa : Empirical Norms and Key Determinants

Mobilizing more revenue is a priority for sub-Saharan African (SSA) countries. Countries have to finance their development agendas, and weak revenue mobilization is the root cause of fiscal imbalances in several countries. This paper reviews the experience of low-income SSA countries in mobilizing revenue in recent decades, with two broad aims: identify empirical norms of how much and how fast countries have been able to mobilize more revenue and empirical determinants (panel estimates) of revenue mobilization. The paper finds that (i) the frequency distribution of changes in revenue ratios for SSA low-income countries (LICs) peaks at a pace of about ½-2 percentage points of GDP in the short-to-medium term and at a pace of about 2-3½ percentage points of GDP over the longer term, and that (ii) almost all SSA-LICs managed to increase revenue ratios by more than 2 percentage points of GDP in the short-to-medium term, at least once in the last two decades. The sustainability of large increases in revenue ratios can be an issue, in particular for fragile countries. The panel estimates suggest that structural factors, such as per capita GDP, share of agriculture in GDP, inflation, degree of openness, and rents received from natural resources, are important determinants of tax revenue.

Africa Rising: Harnessing the Demographic Dividend

Africa will account for 80 percent of the projected 4 billion increase in the global population by 2100. The accompanying increase in its working age population creates a window of opportunity, which if properly harnessed, can translate into higher growth and yield a demographic dividend. We quantify the potential demographic dividend based on the experience of other regions. The dividend will vary across countries, depending on such factors as the initial working age population as well as the speed and magnitude of demographic transition. It will be critical to ensure that the right supportive policies, including those fostering human capital accumulation and job creation, are in place to translate this opportunity into concrete economic growth.

Spillovers from China onto Sub-Saharan Africa; Insights from the Flexible System of Global Models (FSGM)

What is the impact of economic spillovers from China on sub-Saharan Africa (SSA)? This is an increasingly important question because of Chinas growing economic role as a partner of SSA countries for both trade and the buildup of infrastructure in the region. The impact of spillovers from China has been an open question because of the challenge to use an internally consistent framework with solid economic foundations that accounts for both the direct impact China may have on individual countries in SSA through a variety of channels (trade, investment, financial) as well as the impact on the region through the global economy (economic activity and commodity prices). This paper explores those channels of transmission and provides illustrative order of magnitude for the short- and medium-term economic impact by using AFRMOD, a module of the Flexible System of Global Models (FSGM), a multicountry general equilibrium model developed at the IMF. Three alternative scenarios are considered: first, lower potential output in China that is originally misperceived as a temporary cyclical slowdown; second, structural reforms in China that aim to increase potential output; and third, a relocation of low-end manufacturing to sub-Saharan Africa.

Africa’s Rising Exposure to China: How Large Are Spillovers Through Trade?

The rapid growth in China’s domestic investment in recent decades has generated a large appetite for global goods, including from sub-Saharan Africa (SSA). This paper estimates the impact of changes in China’s investment growth on SSA’s exports. Although risingtrading links with China have allowed African countries to diversify their export base across countries, away from advanced economies, they have also led SSA countries to become more susceptible to spillovers from China. Based on panel data analysis, a 1 percentage point increase (decline) in China’s domestic investment growth is associated with an average 0.6 percentage point increase (decline) in SSA countries’ export growth.This impact is larger for resource-rich countries, especially oil exporters. These effects could be mitigated, however, to the extent that countries can reorient their exports.