nep-afr New Economics Papers
on Africa
Issue of 2011‒06‒04
three papers chosen by
Quentin Wodon
World Bank

  1. Investigating the oil price-exchange rate nexus: Evidence from Africa By Simeon Coleman; Juan Carlos Cuestas; Estefanía Mourelle
  2. Homogeneous middles vs. heterogeneous tails, and the end of the ‘Inverted-U’: the share of the rich is what it's all about By Palma, J.G.
  3. Incorporating Climate Uncertainty into Estimates of Climate Change Impacts, with Applications to U.S. and African Agriculture By Marshall Burke; John Dykema; David Lobell; Edward Miguel; Shanker Satyanath

  1. By: Simeon Coleman (Division of Economics, Nottingham Business School, Nottingham Trent University); Juan Carlos Cuestas (Department of Economics, The University of Sheffield); Estefanía Mourelle (Facultad de Ciencias Económicas y Empresariales, Universidade da Coruña)
    Abstract: In this paper, we aim to provide further insights into the importance of real oil price as a determinant of real exchange rates for a pool of African countries. While this relationship has been explored substantially for many industrialised economies, African countries have received little attention. By means of cointegration techniques and nonlinear dynamics we find that, for some of these countries, shocks in the real price of oil are particularly important in determining the real exchange rates, even in the long run. These results would be of interest for policymakers in order to deal more effectively with exchange rate policy decisions, aiming at promoting economic growth in the area.
    Keywords: Oil prices, real exchange rates, cointegration, nonlinearities
    JEL: C32 F15 F31 O55
    Date: 2011–05
    URL: http://d.repec.org/n?u=RePEc:shf:wpaper:2011015&r=afr
  2. By: Palma, J.G.
    Abstract: This paper examines the current global scene of within-nations distributional disparities. There are three main conclusions: first, that the statistical evidence for the ‘upwards’ side of the “Inverted-U” between inequality and income per capita seems to have vanished, as many lowand low-middle income countries now have a distribution of income similar to that of most middle-income countries (other than those of Latin America and Southern Africa). That is, half of Sub-Saharan Africa and many countries in Asian, including India, China and Vietnam, now have an income distribution similar to that found in North Africa, the Caribbean and the secondtier NICs. And this level is also similar to that of half of the first-tier NICs, the Mediterranean EU and the Anglophone OECD (excluding the US). As a result, about 80% of the world population now live in countries with a Gini around 40. So, the pre-globalisation statistical evidence for the hypothesis that posits that (for whatever reason) from a distributional point of view “things have to get worse before being able to get better” is rapidly drawing to a close. Second, that among middle-income countries it is only Latin America and Southern Africa that are living in an inequality limbo of their own. And third, that within an overall trend of rising inequality, there are two opposite distributional forces at work. One is ‘centrifugal’, and takes place at the two tails of the distribution—leading to an increased diversity across country in the shares appropriated by the top 10 percent and bottom forty percent. The other is ‘centripetal’, and takes place in the middle—leading to a remarkable uniformity across countries in the share of income going to the half of the population located between deciles 5 to 9. Therefore, globalisation is creating a situation where virtually all the within-nation distributional differences are the result of what the very rich and the poor are able to appropriate. In turn, it seems that regardless of the political settlement at work current distributional outcomes are characterised by half of the population (located in the middle and upper-middle of the distribution) acquiring strong ‘property rights’ over half of the national income. The other half, however, seems to be increasingly up for grabs between the very rich and the poor. And if what really matters in distributional terms is the income-share of the rich—because the rest ‘follows’ (middle classes able to defend their shares, and workers with ever more precarious jobs in ever more ‘flexible’ labour markets)—everybody attempting to understand the within-nations disparity of inequality (including myself) should always be reminded of this basic distributional fact following the example of Clinton’s campaign strategist: by sticking a note in our notice boards saying “It is the share of the rich, stupid”.
    Keywords: Inequality, poverty, income polarisation, Latin America, South Africa, US
    JEL: D31 D63 N30 O50
    Date: 2011–01–26
    URL: http://d.repec.org/n?u=RePEc:cam:camdae:1111&r=afr
  3. By: Marshall Burke; John Dykema; David Lobell; Edward Miguel; Shanker Satyanath
    Abstract: A growing body of economics research projects the effects of global climate change on economic outcomes. Climate scientists often criticize these articles because nearly all ignore the well-established uncertainty in future temperature and rainfall changes, and therefore appear likely to have downward biased standard errors and potentially misleading point estimates. This paper incorporates climate uncertainty into estimates of climate change impacts on U.S. agriculture. Accounting for climate uncertainty leads to a much wider range of projected impacts on agricultural profits, with the 95% confidence interval featuring drops of between 17% to 88%. An application to African agriculture yields similar results.
    JEL: O13 Q11 Q54
    Date: 2011–05
    URL: http://d.repec.org/n?u=RePEc:nbr:nberwo:17092&r=afr

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