For charity organizations, a down economy presents a conundrum of sorts: the worse the economy, the greater the need for fundraising donations—and the greater the difficulty in securing them. When brainstorming fundraising ideas, it’s vital to consider how to maximize fundraising ROI.

But which fundraising ideas produce the best results? And which donor groups should be targeted to gain the most return?

Blogger Norman Olshansky, of non-profit consulting firm NFP Consulting Resources, presents some useful statistics to maximize fundraising (based on “Fund Raising: Evaluating and Managing the Fund Development Process” by James Greenfield) in a recent post.