How nonprofits grow: a model.

When nonprofit organizations operate in a field of service that might otherwise be provided by government or by for-profit organizations, such as schools, hospitals, or museums, their decisions on the type and amount of services to be delivered are motivated by factors that are quite distinctive. Because they must operate on a break-even basis with revenues raised on a voluntary basis, nonprofit organizations typically take on activities from which they derive no satisfaction in order to subsidize activities that they regard as of higher value. As a result, the mix of services they offer and the charges they impose will generally be quite different from those of a government institution or a for-profit organization.