Create economic_service.py

economic_service.py

@@ -0,0 +1,29 @@
+# economic_service.py
+
+from typing import Dict
+import math
+
+def harmonize(
+    commodity: str,
+    physical_anchor: float,
+    reporting_lag: int,
+) -> Dict:
+    """
+    Deterministic economic harmonization logic.
+    """
+    lag_factor = 1 + 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)
+    ))
+
+    result = {
+        "commodity": commodity,
+        "reporting_lag": reporting_lag,
+        "synthetic_index": round(synthetic_index, 3),
+        "confidence": round(confidence, 3),
+    }
+
+    return result