Fix Restrict Winter Fuel Payment to recipients of means-tested benefits

#936

.github/compare_psnd.py

@@ -0,0 +1,16 @@
+import pandas as pd
+
+psnd_old = pd.read_csv("psnd_old.csv")
+psnd_new = pd.read_csv("psnd_new.csv")
+
+df = pd.DataFrame({
+    "year": psnd_old["year"],
+    "OBR": psnd_old["OBR"],
+    "PE_current": psnd_old["PE"],
+    "PE_new": psnd_new["PE"],
+})
+df["change"] = df["PE_new"] - df["PE_current"]
+df["percent_change"] = (df["change"] / df["PE_current"] * 100).round(1)
+
+print("Projection for public sector net debt (PSND):")
+print(df.to_markdown(index=False))

Makefile

@@ -33,3 +33,4 @@ compare_psnd:
 	pip install -e .
 	cd policyengine_uk/utils && python psnd.py
 	mv policyengine_uk/utils/psnd.csv psnd_new.csv
+	python .github/compare_psnd.py

policyengine_uk/parameters/gov/dwp/winter_fuel_payment/eligibility/require_benefits.yaml

@@ -1,6 +1,6 @@
 description: Whether receipt of means-tested benefits is required to qualify for the Winter Fuel Payment.
 values:
-  2000-01-01: false
+  2000-01-01: true
 metadata:
   unit: bool
   label: Winter Fuel Payment means-tested benefits requirement

policyengine_uk/utils/psnd.py

@@ -21,6 +21,7 @@ def project_psnd():
         "housing_benefit",
         "pip",
         "dla",
+        "winter_fuel_allowance",
     ]
     tax_ben_revenues = (
         tax_ben[tax_ben.name.isin(REVENUES)].set_index("name").loc[REVENUES]
@@ -42,6 +43,7 @@ def project_psnd():
         "housing_benefit",
         "pip",
         "dla",
+        "winter_fuel_allowance",
     ]
     baseline = Microsimulation()
 
@@ -74,7 +76,7 @@ def project_psnd():
         }
     )
 
-    df["PE"] = df["PE"].round().astype(int)
+    df["PE"] = df["PE"].round(1)
 
     df.to_csv("psnd.csv", index=False)