ONGOING EVALUATION. IED will conduct an Evidence and Gap Map (EGM) exercise to establish the range of development knowledge available on interventions that support global and regional value chains (GVCs) and to characterize ADB’s support through its strategies and investments. The EGM will highlight gaps in the evidence base and show where evidence is more abundant. An ADB GVC portfolio overlay will be attempted to identify overlaps in ongoing support when compared to available evidence.