Guaranteed income studies don’t assume the economic effects of incentives---even if the CP marginally increases income, it disincentivizes social mobility.

Whether and how to target basic incomes will of course ultimately depend on specifics of context. That said, our reading of what we currently know – and crucially, what we do not – about targeting suggests that a few principles should typically hold. First, the benefits of targeting may be overestimated by analyses that do not take into account the incentives it generates or the realities of implementation on the ground. Universal or near-universal approaches deserve more consideration than they often receive. Second, the kinds of targeting that will make most sense will often be relatively simple, such as geographic targeting. Designers should guard against creating too much discretion for the front-line staff who implement targeting, including the implicit discretion that is created when a policy is too complicated for beneficiaries to understand it and hold local officials to account. However, these targets may perform extremely poorly in reaching the poor.