Cause-related marketing is a powerful marketing tool that business and nonprofit organizations are increasingly leveraging. According to the Cone Millennial Cause Study in 2006, 89% of Americans (aged 13 to 25) would switch from one brand to another brand of a comparable product (and price) if the latter brand was associated with "good cause". The same study also indicated that a significant percentage surveyed would prefer to work for a company that was considered socially responsible. This can be linked to the increase in workplace giving programs. Earlier studies by Cone indicate an upward trend in the number of Americans who associate their own buying habits with cause marketing as well as an expectation that those companies to be "good corporate citizens". These studies also show a substantial increase from just before to just after the September 11, 2001 attacks.