StrategyPage points out several key issues that Hamas is having to face. Here is one:

The Palestinian people are becoming disillusioned with the terror tactics. The main reason for the disillusionment is poverty. Before the current “intifada” (uprising) began in late 2000, some 20 percent of Palestinians lived in poverty. Now that figure is over 80 percent. Per capita income for Palestinians is about a thousand dollars (although 30 percent of that comes from foreign aid). Business investment in the Palestinian territories (and their 3.5 million population) is only about ten percent of what it was before the intifada. The Palestinian economy depends on Israel for jobs and trade. By sending suicide bombers into Israel, the movement of Palestinians and Palestinian goods into Israel was interrupted. [ emphasis added ]

Seems like a violation of an old proverb involving a hand, food and teeth.

(Hat-tip to Dean's World)