This text is the result of the reviews of the following publications: Stewart Macaulay, Non-Contractual Relations in Business: A Preliminary Study, American Sociological Review, vol. 28, nr. 1, 1963; Stewart Macaulay, The Impact of Contract Law on the Economy: Less Than Meets the Eye?, Conference on Law and Modernization, Peru, 1994; Stewart Macaulay, The Real and the Paper Deal: Empirical Pictures of Relationships, Complexity and the Urge fo...