Question

Realizing that poor countries must solve many problems at once has shifted donors away from the idea of giving multiple small payments and towards the idea of a "big push". this big push entails giving a very large sum of money that could be used to fix multiple problems at once. in fact, the amount of money required might be so large that other countries might be the only ones who could afford the donation. from the donor country's perspective, the trade-off associated with this idea is that:

Answer 1

Donor countries hope that by giving a lump sum of money to countries, they can fix multiple things and it will ensure that those fixes are effective. If only small amounts are given that don't lead to a long term fix, that means more money is given in the long run. If they can fix their problems by donating a large amount, it could save them money from future donations, make them look better by being generous, and maybe even make money from trade if the country grows.