An index of decisional balance was calculated by transforming the "pro" index and "con" index for the mammography scales into percents, and subtracting the "con" percent from the "pro" percent.
However, the results on the relative pro-poor indices indicate that reduced chemical sourcing costs are not relatively pro-poor.
Looking at this in a relative perspective, one can find that this policy is also pro-poor as the two relative pro-poor indices are positive.
Table 12 gives the estimates of the growth in average income and six pro-poor indices.
The Ravallion and Chen index, the Kakwani and Pernia index, and PEGR index constitute the absolute pro-poorness indices.
Turning our attention to the reduced chemical sourcing costs (Scenario 4), the absolute pro-poor indices are positive but not significant.
The pro-poor indices include the Ravallion and Chen ([2003]) index, the Ravallion and Chen ([2003]) index minus γ, the Kakwani and Pernia ([2000]) index, the Kakwani and Pernia ([2000]) index minus 1, the poverty-equivalent growth rate (PEGR) index,16and the poverty-equivalent growth rate (PEGR) index minus γ.
Based on Kakwani and Pernia ([2000]) pro-poor index, Kakwani et al. ([2003]) further developed a pro-poor index, the Poverty Equivalent Growth Rate (PEGR) index, that adjusts for the change in the growth rate.
Algebraically, the PEGR is given by the product of Kakwani and Pernia ([2000]) pro-poor index and the growth in average income.
Thus, the Ravallion and Chen ([2003]) pro-poor index can be calculated as the mean of the growth rate of each percentile of the income distribution up to the headcount index, divided by the headcount index.
