%X This paper provides a framework that integrates and reinterprets prior research on satisfaction modeling (function) and proposes the existence of non-linear and curvilinear/higher-order relationships to model online banking customers. It provides a framework that examines two closely related but distinct countries�Malaysia, a developing country, and Singapore, a developed country�and identifies whether modeling online banking customers through satisfaction is unique to each context or is generic. Using a systematic and step-by-step hierarchical moderated regression approach, this study tries to understand the relationship among repurchase intention, satisfaction, and trust, moderated by bank size. Malaysia portrays a linear relationship, while Singapore depicts non-linear and curvilinear/high-order relationships. The findings suggest that modeling online banking customers through satisfaction depends on a country�s economic development. By contrast, prior studies on modeling customers through satisfaction were conducted independently and did not employ proper and systematic steps to capture the satisfaction function. © 2018, Institute of Applied Informatics at University of Leipzig. %N 2 %R 10.1007/s12525-018-0286-5 %D 2018 %L scholars10348 %J Electronic Markets %O cited By 3 %I Springer Verlag %V 28 %A D.H. Ting %T Modeling the customer satisfaction function: a two-country comparison %P 163-175