A Big Foundation Seeks to Make a Greater Impact by Narrowing Its Focus

The board of the Public Welfare Foundation, one of the nation's biggest supporters of grass-roots advocacy groups, voted in mid-October to tighten its grant making to focus on three key causes, in the hope that it can achieve more than it has by sprinkling $20-million annually on a broad array of organizations. The decision has been hailed by charities that will get new support, but many groups that had long counted on Public Welfare to pay their operating expenses say they will be forced to