Over the last 20 years, a burgeoning scholarly literature has analyzed the effects of cash transfer and cash plus interventions in a wide range of contexts and using a range of empirical designs. We conduct a systematic review and meta-analysis to estimate the pooled effect of any cash or cash plus intervention on livelihoods-related outcomes (consumption, income and labor supply), ultimately compiling 305 different treatment estimates from 155 treatment arms in 104 studies (and in 43 countries). Using random effects and multilevel models, our findings suggest that cash transfer programming is associated with an increase of between $1 and $2 in monthly household consumption and income per $100 in cumulative transfers, an effect that persists for a period of roughly three years (inclusive of the period of program implementation); this effect is meaningfully larger (as much as $4 larger) for cash transfer programs that also include a cash plus livelihoods intervention. There are no significant effects observed on labor force participation. We also present a range of estimates capturing the longer-term (cumulative) effects of cash transfers on consumption under alternate assumptions.