An entity may be created to accomplish a narrow and well-defined objective (eg to effect a lease, research and development activities or a securitisation of financial assets). Such a special purpose entity (‘SPE’) may take the form of a corporation, trust, partnership or unincorporated entity. SPEs often are created with legal arrangements that impose strict and sometimes permanent limits on the decision-making powers of their governing board, trustee or management over the operations of the SPE. Frequently, these provisions specify that the policy guiding the ongoing activities of the SPE cannot be modified, other than perhaps by its creator or sponsor (ie they operate on so-called ‘autopilot’).