If the pledges of $48 billion per year in new aid are fulfilled, that would amount to $480 billion over a decade.
The number of child deaths due to preventable causes is about 5 million a year in developing countries, or 50 million per decade. If $150 billion of the new aid aims to prevent child deaths, and if a third of such deaths can be prevented for $500 each, and the next third for $2000 each, and the last third for $10,000 each, then the aid may reduce deaths by 44 million over a decade. The number of life-years lost per child death is about 50 years, for a total saving of 2.2 billion life-years.
If another $150 billion in new aid is aimed at adult health, such as AIDS, malaria, and TB, and if death prevention costs $4000 each, then the aid may reduce adult deaths by 37 million over a decade. The number of life-years lost per adult death is about 25 years, for a total saving of 930 million life-years.
The number of children missing school is about 100 million. The equivalent life-years lost by missing school may be 2 years, for a total of 200 million life-years. If $40 billion of new aid supports primary education, and if $100 can pay for one year of school, then all children for whom money is an obstacle, say half, could attend school, for $20 billion, giving a saving of 100 million life-years. School improvements with the other $20 billion may improve education for current students to an extent of, say, 20 million life-years.
There are about 1.1 billion people in absolute poverty. If the remaining $140 billion of new aid is aimed against poverty, and if a third of such poverty can be eliminated for $500 per person, then 280 million people can be removed from absolute poverty. The equivalent life-years lost by living in absolute poverty may be about 15 years, giving a total of 420 million life-years saved.
Thus, there could be a total of 3.6 billion life-years saved. At 40,000 life-years/character, that allows 90,000 characters for this and related articles. This article has about 2300 characters, thus there is potential for many more articles on these subjects.