Why do institutions vary in their design, membership, issue scope, centralization of tasks, rules for controlling the institutions, and rigidity? Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. a The differences can be ascribed mainly to happenstance and unpredictable events rather than deliberate design choices or strategic decision-making. b The design distinctions can be influenced by the institution's geographical location, as regional factors and environmental considerations may play a role in determining the institution's structure and objectives. c These variations are due to distributional and enforcement problems arising from the number of actors and the fair distribution of gains. d The variations are due to the aesthetic preferences of the institution's founders