Update economic_service.py

economic_service.py

@@ -1,7 +1,6 @@
 # economic_service.py
 
 from typing import Dict
-import math
 
 def harmonize(
     commodity: str,
@@ -9,21 +8,25 @@ def harmonize(
     reporting_lag: int,
 ) -> Dict:
     """
-    Deterministic economic harmonization logic.
+    Deterministic economic harmonization function.
     """
-    lag_factor = 1 + reporting_lag * 0.005
+
+    lag_factor = 1.0 + (reporting_lag * 0.005)
     synthetic_index = physical_anchor / lag_factor
 
     confidence = max(
         0.0,
-        min(1.0, 1.0 - abs(physical_anchor - synthetic_index) / (physical_anchor + 1)
-    ))
+        min(
+            1.0,
+            1.0 - abs(physical_anchor - synthetic_index)
+            / (physical_anchor + 1e-9),
+        ),
+    )
 
-    result = {
+    return {
         "commodity": commodity,
-        "reporting_lag": reporting_lag,
-        "synthetic_index": round(synthetic_index, 3),
-        "confidence": round(confidence, 3),
-    }
-
-    return result
+        "physical_anchor": physical_anchor,
+        "reporting_lag_days": reporting_lag,
+        "synthetic_index": round(synthetic_index, 4),
+        "confidence": round(confidence, 4),
+    }