Working at the intersection of exchange theory, urban anthropology, and ethnic and racial studies, this article offers an original perspective on the role of local patrons’ exchange networks in constructing place belonging during racial urban change. Inspired by a middle-ground approach to reciprocity, embodying both solidarity and distrust within the same ethnic community, and manifested in an interracial context, the article proposes the integrative term of strategic generosity. The concept includes two interlinked layers: the combination of altruism and self-interest in local patrons’ exchange practices within the same ethnic community, and patron exchange circles as mechanisms for the exclusion of racial Others reproducing boundaries between social groups. The case study is HaTikva—a lower-income neighborhood in downtown Tel Aviv originally inhabited almost exclusively by disadvantaged Mizrahi Jews (of Middle Eastern origin), and more recently transformed by the arrival of African asylum seekers. Based on fieldwork conducted from 2010 to 2013 among long-term Mizrahi residents, I argue that although local Mizrahi patrons use parental metaphors to describe their unconditioned giving to their own community; in fact, altruist and instrumental actions intermingle in the management of their reciprocity network. The exchange networks help vulnerable agents and enhance Mizrahi place attachment, but at the same time buttress the patrons’ own standing in the neighborhood and exclude the non-Jewish African Others. These findings are discussed in the context of everyday life in a marginalized ethnic community as well as a barrier to integration and the concept's contribution to exchange theory more broadly.

This article examines the Hong Kong–China maritime border since 1949, when the establishment of the People’s Republic of China and the onset of the Cold War turned the 1898 imperial boundary into an ideological line, one that nonetheless remained porous to ties of trade and kinship. It focuses on the oyster-producing communities in the tidelands of the Pearl River estuary, showing how oystermen—some of them also refugees—faced security threats exacerbated by the Cultural Revolution while they also leveraged the borderland’s opportunities. The oyster industries are a case study in two forms of agricultural production: traditional land and labor relations on the Hong Kong coast, and collective agriculture in China’s socialist period, followed by decollectivization in the reform era. By the end of the Mao years in 1976, China’s oyster industry well exceeded that of Hong Kong’s, but both systems were vulnerable to industrial pollution. In the reform era and after, China’s oystermen built upon persistent networks to navigate their position between Hong Kong, Shenzhen, and the Pearl River Delta. The prosperity of the China oysterman, rather than the Hong Kong refugee, illustrates the inversion of the border’s valence from a colonial past to a postsocialist future.