Create Update economic_kernel.py

Update economic_kernel.py

@@ -0,0 +1,12 @@
+def economic_kernel(commodity, anchor, macro):
+    gdp_factor = 1.0
+    if macro["global_gdp"]:
+        gdp_factor = macro["global_gdp"] / 1e14
+
+    return {
+        "commodity": commodity,
+        "supply": anchor * gdp_factor,
+        "demand": anchor * 0.95 * gdp_factor,
+        "price_index": round(anchor / 10 * gdp_factor, 2),
+        "currency_flow": anchor * 0.9 * gdp_factor,
+    }