Chapter 23: The Janus face of remittances: Do remittances support or undermine development in the Global South?Literature on the impact of remittances on economic growth in developing countries presents a twofold picture. On the one hand, remittances play a positive role by contributing significantly to the economic growth of recipient countries, particularly via promoting profitable investment. On the other hand, remittances may curb economic growth if misused. While the empirical literature on remittances-growth nexus is rich, the non-linearity of the effect remains mostly unexamined. The main objective in this chapter is to question the linear design that predominates previous empirical work on the remittances-growth connection. The idea is that for countries whose remittances are not massive (as measured by the share of these financial flows in GDP), the effect on economic growth may be negative. However, there is a threshold level of remittances to GDP at which these financial flows may boost economic growth. To examine the non-linearity issue of effect, we will rely on a Dynamic Panel Threshold Model to investigate the potential presence of a threshold level in the linkage between remittances and growth for a panel of developing countries. Results provide, on the one hand, a useful contribution to the existing literature by re-thinking the relationship form between remittances and economic growth. On the other hand, the results can be relevant for policy makers in developing countries to better benefit from remittances.