As a poverty economist, I know how difficult it is to forecast poverty numbers for even the next year. But, since the World Bank Group (WBG) announced the goal of ending extreme poverty by 2030, I have been projecting poverty numbers of some countries and regions for nearly two decades into the future. I could not help but ask myself “What am I doing this for?”
Forecasting versus Benchmarking
I looked for answers by reading recent papers on similar topics. Most seemed to be competing to prove that their projections were the most plausible. Some seemed better than others, but they were not convincing enough to erase my doubt. Before giving up the search, I reread Ravallion (2012, 2013) , and at last got an answer. In both papers Ravallion projected future poverty under the assumption that the developing world maintains its current pace of growth and poverty reduction. Although his methodology ensures that his projection predicts future poverty accurately if this assumption holds, it is still uncertain whether this assumption will hold and, consequently, whether his projection will prevail.