This study examined factors facilitating support giving to members of the social network by elderly Jewish persons residing in assisted living facilities in Israel. A support provision score was regressed on two sets of background control variables: personal characteristics and housing factors; social network variables; and an exchange measure-perceived available support. The hierarchical multivariate results revealed that it was principally the perceived support measure along with two personal characteristics (younger age and nonreligious orientation) that explained the variance in the support provision score (IP = .52). The findings underscore the importance of reciprocity within the informal networks of this population. Although there exists a large and growing literature on the support networks of elderly people, the bulk of reported research tends to view older persons primarily as aid recipients (Dean, Kolodny, Wood, & Ensel, 1989;Penning, 1990;Stevens, 1992;Williams, 1995). Where support giving is addressed, the inquiry most often focuses on younger people as providers of assistance to the old (Johnson, 1995). Much less attention has been paid to the role of older persons as support providers, even though it is acknowledged that elders do reciprocate the aid they receive (Peters & Kaiser, 1985), and that they reciprocate in relation to all the types of relationships they maintain (Wentkowski, 1981).The relative lack of efforts to account for help provision by older adults-a necessary component of reciprocity-is troubling, in that reciprocity in the giving and receiving of help has been found to correlate with a range of important outcomes in later life. It is directly associated with older people's life satisfaction (Antonucci, Fuhrer, & Jackson, 1990;Black, 1985;Stevens, 1992), happiness (Antonucci & Akiyama, 1987), and self-esteem (Hawley & Chamley, 1986;Wentkowski, 1981). Correspondingly, lack of reciprocity is related to dissatisfaction (Rook, 1987), guilt (Schumaker & Jackson, 1979), limited willingness to ask for help on the part of older adults (Creenberg & Shapiro, 1971;Wenger, 1993), and low self-esteem (Stein, Linn, & Stein, 1982).This article addresses the important but relatively unaddressed question of what accounts for helping behavior on the part of older people. That is, it explores the factors that facilitate the provision of support by elders to other members of their social network. The discussion is drawn from a study of the 'Address correspondence to Howard Litwin, Paul Baerwald School of Social Work, The Hebrew University of Jerusalem, Mount Scopus, Jerusalem IL-91905, Israel. E-mail: mshowie@pluto.mscc.huji.ac.il social networks of elderly residents of assisted living facilities in Israel, which was carried out in 1995-96.At the time of the study, about 1.4% of elderly Jewish Israelis resided in some 9,000 assisted units. These facilities serve older people who live independently but receive selected auxiliary services such as social activities, nurse on call, and so on. The assiste...