We present a general and tractable oligopoly model of multi-sided platforms with endogenous side and platform choices of heterogeneous end-users, considering any mix of single-homing and multi-homing platforms and in which participating on one side could preclude doing so on others. We show the...

Nonprofit organizations provide an array of important social goods and services including arts, education and health care. Consequently, the nonprofit sector is a growing area of interest for management and strategy scholars. Existing theories of nonprofit organizations posit a menu of...