Muhammad Yunus, the recent winner of the Nobel Peace Prize, explains why he prefers to help the world's poor with loans rather than grants of financial aid:
Many people ask, Why not just give free cash, especially under such dire circumstances? In Bangladesh, we've learned that when aid is free, not only do the poor get the least of it, but everyone inflates their needs. While some handouts are clearly necessary in such times, we focus on lending small amounts of money. This lets us keep costs down and rebuild funds for the next disaster. Most importantly, our Grameen banks are ready to act at a moment's notice. They can respond to a disaster without waiting for anyone's permission, immediately becoming like humanitarian agencies by suspending loan payments, and providing cash, food and medicines. Once rebuilding starts, the bankers keep detailed records of the money lent, and people are allowed to repay bit by bit.
Here is the entire Yunus article