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ADDITIONAL DATA 107


Table A.4 Comparing urban poverty impacts across three microsimulation studies


Change in poverty headcount (percentage points)


IM:


Country Nigeria


DHH: 6.1 WEA: 0.56 Suggested explanation


Total poverty Urban poverty Total poverty of discrepancy —


WEA results may be too low because urban poverty is high in Nigeria and foods covered in their report represent just 11.5 percent of consumption.


Cambodia 1 5.8 —


DHH results are probably too high, given that IM employ more sophisticated methodology and most Cambodians are rural.


Senegal — 0.4 Ghana — 3.1 4 0.6


DHH results may be too low, given Senegal’s dependence on imports.


DHH results may be too high, given low urban poverty and the diversified Ghanaian diet. WEA results are also similar to Cudjoe, Breisinger, and Diao (2008).


Guinea — Pakistan 2.56 Nicaragua 4.3 Madagascar 3.6 Malawi —


1.3 1.8 3.7 4 1


Gabon — 1.1 Bolivia 1 Zambia 1 Vietnam 0.2


Mali — 2.3


1.2 1.2 0.1


2.5


— — —


0.6 1.4


— — —


2.3


Sources: Constructed by the authors from Dessus, Herrera, and Hoyos (2008), Ivanic and Martin (2008), and Wodon et al. (2008).


Notes: The table reports specific results from the three studies that maximize the basis for compari- son: poverty is measured as changes in US$1 per day poverty headcount levels; price shocks are 20 percent; and only urban poverty results are reported, because the DHH results are the only ones common to other studies. In the case of WEA results, data have been adjusted in a linear fashion from their 25 percent price increase (that is, their results have been multiplied by 20 and then divided by 25). Variations in results reflect differences in surveys and simula- tion methods. —, the study did not include the country in question; DHH, Dessus, Herrera, and Hoyos (2008); IM, Ivanic and Martin (2008); WEA, Wodon et al. (2008).


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