UPDATE

economic_overview/serializers.py

@@ -0,0 +1,20 @@
+from rest_framework import serializers
+
+
+class EconomicDataItemSerializer(serializers.Serializer):
+    title = serializers.CharField()
+    value = serializers.CharField()
+    subtitle = serializers.CharField()
+    avatarIcon = serializers.CharField()
+    avatarColor = serializers.CharField()
+
+
+class ChartSeriesSerializer(serializers.Serializer):
+    name = serializers.CharField()
+    data = serializers.ListField(child=serializers.FloatField())
+
+
+class EconomicOverviewSerializer(serializers.Serializer):
+    economicData = EconomicDataItemSerializer(many=True)
+    chartSeries = ChartSeriesSerializer(many=True)
+    chartCategories = serializers.ListField(child=serializers.CharField())