Little research has been done on managerial perceptions of transaction costs, or on the impact of institutions on the calculation of transactions costs. In this study we develop a model that evaluates the effects of institutional forces on transactions costs calculations in the context of the institutionalization of total quality management. Our findings indicate that institutionalization does indeed shape perceptions of transactions costs, as do factors already associated with the transaction cost model, such as asset specificity and interdependence of customer and supplier. Our findings have important implications for research into both institutionalization and transactions costs analysis.