Unit root and trend breaks in per capita output: evidence from sub-Saharan African countries

2017 ◽  
Vol 50 (6) ◽  
pp. 634-658
Author(s):  
Eléazar Zerbo ◽  
Olivier Darné
2015 ◽  
Vol 7 (4) ◽  
pp. 30 ◽  
Author(s):  
Danjuma Maijama'a ◽  
Shamzaeffa Samsudin ◽  
Shazida jan Mohd Khan

<p>This study investigates the effects of the HIV and AIDS epidemic on economic growth in 42<br />sub-Saharan African countries using data spanning from 1990-2013. Unlike previous studies,<br />we use a longer data horizon and take the time lag effect of the epidemic’s incubation period<br />that is, after it might have developed to AIDS into consideration in our estimations. We<br />estimated an empirical growth equation within an augmented Solow model and applied the<br />dynamic system GMM estimator. The results suggest that current HIV prevalence rate –<br />associated with rising morbidity, has a negative effect on GDP per capita growth, conversely<br />AIDS – associated with higher mortality in addition to morbidity, increases per capita GDP<br />growth.</p>


2021 ◽  
Vol 35 (3) ◽  
pp. 133-156
Author(s):  
Belinda Archibong ◽  
Brahima Coulibaly ◽  
Ngozi Okonjo-Iweala

Over three decades after market-oriented structural reforms termed “Washington Consensus” policies were first implemented, we revisit the evidence on policy adoption and the effects of these policies on socio-economic performance in sub-Saharan African countries. We focus on three key ubiquitous reform policies around privatization, fiscal discipline, and trade openness and document significant improvements in economic performance for reformers over the past two decades. Following initial declines in per capita economic growth over the 1980s and 1990s, reform adopters experienced notable increases in per capita real GDP growth in the post-2000 period. We complement aggregate analysis with four country case studies that highlight important lessons for effective reform. Notably, the ability to implement pro-poor policies alongside market-oriented reforms played a central role in successful policy performance.


2001 ◽  
Vol 39 (3) ◽  
pp. 411-436 ◽  
Author(s):  
Arthur A. Goldsmith

African countries are among those receiving the most foreign aid per capita. Many detractors blame that aid for encouraging dictatorship and undermining democracy. This article takes a contrary view. It analyses the relationship between the amount of development assistance given to sub-Saharan countries in the 1990s, and changes in their political systems. There is empirical evidence that arbitrary, unrepresentative government diminished in Africa. The data also suggest a positive, though small, correlation between development assistance and democratisation in the 1990s. The issue now facing many African countries is how to consolidate and extend these reforms on their own, with less external support.


2019 ◽  
Vol 13 (1) ◽  
pp. 192
Author(s):  
Fonkam Mongwa Nkam ◽  
Akume Daniel Akume ◽  
Molem Christopher Sama

The objective of this study is to investigate in to the drivers of private equity penetration in Cameroon, Nigeria, Ghana, Kenya and South Africa. Secondary data was collected from private equity and venture capital data bases (CapitalIQ, Preqin, Burgiss and Mergermarket), World Bank development indicators, regional private equity and venture capital associations and country specific stock market websites. The Panel Two-Stage Least Squares Instrumental Variables (2SLS IV), Panel Corrected Standard Errors (PCSE) and Feasible Generalised Least Squares (FGLS) estimation techniques were used. This was due to potential problems of endogeneity and spherical errors of serial correlation, heteroskedasticity, cross sectional dependence and multicollinearity. The results using the 2SLS IV estimation technique show that stock market capitalisation, GDP per capita, banking credit to private sector, real exchange rate and private investments are key macroeconomic drivers of private equity penetration in the selected Sub-Saharan African countries. Inflation had negative and insignificant effect on private equity penetration in the selected countries. The results using the PCSE and FGLS estimation techniques show that the signs of all the variables remain the same as was the case in the 2SLS IV estimation technique though the magnitudes were different. However, the results of PCSE and FGLS estimation techniques show that banking credit to private sector is significant in the FGLS model while private investments is significant in the PCSE model. GDP per capita, real exchange rate, stock market capitalisation and inflation are significant in both the PCSE and FGLS estimation techniques.


2012 ◽  
Vol 18 (1) ◽  
pp. 199-214 ◽  
Author(s):  
Thomas Deckers ◽  
Christoph Hanck

This paper tests for output convergence across n = 51 economies, employing the definition of Pesaran [Journal of Econometrics 138, 312–355 (2007)]. The definition requires output gaps to be stationary around a constant mean. But when all n(n − 1)/2 pairs of log per capita output gaps are considered, this results in more than 1,000 unit root tests to be conducted. Hence, because of the ensuing multiplicity of the testing problem, a nontrivial number of output gaps will be falsely declared to be stationary when each of the n(n − 1)/2 hypotheses is tested at some conventional level like 5%. To solve the problem, we employ recent multiple testing techniques that allow us to bound the expected fraction of false rejections at a desired level. Monte Carlo results illustrate the usefulness of the techniques. The empirical results show that the data do not support the notion of output convergence after controlling for multiplicity.


1986 ◽  
Vol 30 (2) ◽  
pp. 197-203
Author(s):  
Melvin L. M. Mbao

Twenty years ago Zambia was riding a wave of seemingly unstoppable prosperity. Income per capita was the highest amongst sub-Saharan African countries. The high copper prices on which Zambia's wealth was based enabled the government to pursue ambitious social welfare programmes. However since the second half of 1974 the bottom has fallen out of the copper market as a result of recession in most of the copper-consuming countries and technical advances in industry which have reduced the need for copper. In the decade since then Zambia's economy has deteriorated progressively as can be gleaned from these statistics: GDP per capita in constant (1970) prices declined by about 25 per cent, between 1974 and 1983; per capita incomes fell by 44 per cent, during 1974—85 period; the level of real imports in 1984 was only 40 per cent, of the average level in the early 1970s; scarcity of foreign exchange has reduced capacity utilisation to low levels (in the last quarter of 1985 it was estimated that the industrial sector was operating only at about 30 per cent, of capacity and in some individual companies the situation was so serious that some once-thriving factories had had to close down for lack of essential spares and raw materials) and the investment rate fell from 41 per cent, in 1975 to about 12 per cent, in 1984. The expenditure in the public sector for operation and maintenance is underfunded, resulting in marked deterioriation of standards in public services, especially health and education.


Author(s):  
Richard E. Mshomba

Since independence, African states have been striving for economic development, but relatively few countries have achieved their goal. Between 1970 and 2016, real GDP per capita in sub-Saharan Africa grew by an annual average of just 0.48%. However, there was a wide range of economic performance across different countries, as well as clear variation in growth rates over time. Countries such as the Central African Republic, Democratic Republic of Congo, Liberia, and Madagascar had, on average, a negative growth rate in terms of real GDP per capita. Meanwhile, countries such as Botswana, Lesotho, Mauritius, Seychelles, and Swaziland had positive average annual growth rates of at least 3%. The differences in economic growth rates reflect the diversity of economic structures, governance, and political stability across African states. Although deeper economic integration among African countries may work to reduce the large disparities in economic development, any projections must nonetheless recognize that countries will differ in their economic trajectories. Variation over time is also important. The dominant patterns of economic development in sub-Saharan Africa in the 1980s and 1990s on the one hand, and the 1970s and past the 1990s on the other, were quite different, reflecting a long business cycle. If we look solely at economic growth statistics, the 1980s and 1990s can be described as lost decades. On average, real GDP per capita on the continent declined annually by 1.54% and 0.62% in the 1980s and 1990s, respectively. By contrast, between 2000 and 2016, real GDP per capita increased by an annual average of 2.13%. One important debate has focused on whether these shifts are primarily the result of domestic or international factors. Structural adjustment programs (SAPs) imposed by the International Monetary Fund (IMF) and the World Bank have been blamed for the decline in the economic fortunes of African countries in the 1980s. At the same time, they are praised for pulling many countries out of unsustainable macroeconomic policies. Moreover, a balanced overview of Africa’s development trajectory must conclude that even without major policy shifts such as those brought forth by the SAPs, many countries would still have remained highly dependent on one or just a few commodities, and would therefore have continued to experience wild swings in their business cycles in the absence of international intervention. The lack of economic diversification of many economies on the continent means that the future is hard to predict. However, the prerequisites for a prosperous Africa are not a mystery—they include good governance, economic diversity, and genuine economic integration.


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