Induced by unprecedented growth, invasion of for-profit organizations in the nonprofit domain, and high-profile cases of mis-T HE issue of organizational effectiveness (OE) has been one of the most sought out yet elusive of research subjects since the early development of organizational theory. Although it may be intuitively apparent that a measure of organizational performance would be readily available in management literature, quite the contrary is true. This study is based on research of the literature and identifies the most reliable model available that can measure OE among for-profit and nonprofit organizations.The need for research in cross-sector OE emerges at a time when at least three determinant trends are transforming the nonprofit landscape. First, a surge of academic interest in nonprofit organization performance has been observed (Speigel, 1990). A second noticeable trend is that, as a reaction to current pressures, nonprofits are haphazardly implementing management practices of the for-profit sector (Eisenberg, 1997). Finally, nonprofits are increasingly being