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E-book Marginality: Addressing the Nexus of Poverty, Exclusion and Ecology
There has been signifi cant progress in the reduction of poverty in the developing world over the past few decades. The prevalence of income poverty defi ned at US$1.25/day per capita declined from 43 to 22 % from 1990 to 2008 according to information presented in Ahmed et al. (Chap. 6 this volume). This progress is the result of various factors, including economic growth reaching the poor and in many countries there has also been increased attention to social protection policies. Most of this progress was homegrown, but both factors—growth and social protection—were somewhat assisted by development aid (Sachs 2006 ). A simplistic extrapolation of the declining trend in overall poverty prevalence by about one percentage point per annum over the past 20 years would automatically misguide us with the expectation that absolute poverty could end within two decades. However, it would be more realistic to assume that any further reduction of the remaining poverty will be more protracted. The diversity of people far below that income poverty line (i.e., the extremely poor) is high. Economic growth alone may contribute less to poverty reduction at societal margins, both at the bottom end of the income distribution and in geographically remote areas. Examples of the latter are revealed already by the persistence of poverty in marginal areas of China and Indonesia (see Zhu Chap. 15 and Pangaribowo Chap. 14 this volume). More than half of the world’s poor now live in large, emerging economies that happen to be members of the economically leading G20 nations. The bottom billion has shifted and no longer only lives in the poorest and often fragile states (Collier 2007 ). On the other hand, the capacities to design and implement social protection policies have become more widespread over the past two decades and will assist with effective poverty reduction, even among the extremely poor (von Braun et al. 2009 ). Understanding the constraints and behavior of the marginalized poor is essential for effective program designs, and there has been research progress in that domain too, partly through randomized control trials of large and small development investments (Adato and Hoddinott 2010 ; Banerjee and Dufl o 2011 ). Addressing extreme poverty effectively is, however, not just a mat-ter of growth and targeted transfer policies, but also a matter of addressing structural forces such as exclusion, discrimination, and the deprivation of rights; constrained access to services and technology; governance defi ciencies and cor-ruption; and the forces of ecological change that are increasing the vulnerability and eroding the resilience of the poor, many of whom depend on natural resources at the margins in rural areas or live in high risk margins of urban areas. Some of these issues can be further illuminated by experimental research, but many are not open to that possibility due to the rigidities and scale of some of these structural forces.
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