Implement Employment Insurance (EI) benefits

policyengine_canada/parameters/gov/cra/benefits/employment_insurance/maximum_insurable_earnings.yaml

@@ -0,0 +1,15 @@
+description: Maximum annual insurable earnings for Employment Insurance
+values:
+  2020-01-01: 54_200
+  2021-01-01: 56_300
+  2022-01-01: 60_300
+  2023-01-01: 61_500
+  2024-01-01: 63_200
+  2025-01-01: 65_700
+metadata:
+  unit: currency-CAD
+  period: year
+  label: EI maximum insurable earnings
+  reference:
+    - title: EI premium rates and maximums
+      href: https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/payroll-deductions-contributions/employment-insurance-ei/ei-premium-rates-maximums.html

policyengine_canada/parameters/gov/cra/benefits/employment_insurance/maximum_weekly_benefit.yaml

@@ -0,0 +1,17 @@
+description: Maximum weekly Employment Insurance benefit amount
+values:
+  2020-01-01: 573
+  2021-01-01: 595
+  2022-01-01: 638
+  2023-01-01: 650
+  2024-01-01: 668
+  2025-01-01: 695
+metadata:
+  unit: currency-CAD
+  period: week
+  label: EI maximum weekly benefit
+  reference:
+    - title: Employment Insurance benefit amounts
+      href: https://www.canada.ca/en/services/benefits/ei/ei-regular-benefit/benefit-amount.html
+    - title: EI premium rates and maximums
+      href: https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/payroll-deductions-contributions/employment-insurance-ei/ei-premium-rates-maximums.html

policyengine_canada/parameters/gov/cra/benefits/employment_insurance/minimum_hours.yaml

@@ -0,0 +1,10 @@
+description: Minimum insurable hours required for Employment Insurance eligibility
+values:
+  2020-01-01: 420
+metadata:
+  unit: hour
+  period: year
+  label: EI minimum insurable hours
+  reference:
+    - title: Employment Insurance eligibility
+      href: https://www.canada.ca/en/services/benefits/ei/ei-regular-benefit/eligibility.html

policyengine_canada/parameters/gov/cra/benefits/employment_insurance/rate.yaml

@@ -0,0 +1,10 @@
+description: Employment Insurance benefit replacement rate
+values:
+  2020-01-01: 0.55
+metadata:
+  unit: /1
+  period: year
+  label: EI benefit rate
+  reference:
+    - title: Employment Insurance benefit amounts
+      href: https://www.canada.ca/en/services/benefits/ei/ei-regular-benefit/benefit-amount.html

policyengine_canada/tests/benefits/employment_insurance/ei_benefit.yaml

@@ -0,0 +1,56 @@
+- name: Basic EI benefit calculation
+  period: 2024
+  input:
+    employment_income: 50_000
+    ei_insurable_hours: 600
+  output:
+    # Weekly: min($50,000, $63,200) / 52 * 0.55 = $528.85
+    # Capped at maximum $668/week, so $528.85
+    # Annual: $528.85 * 26 weeks = $13,750
+    ei_benefit: 13_750
+
+- name: EI benefit at maximum
+  period: 2024
+  input:
+    employment_income: 80_000
+    ei_insurable_hours: 1_000
+  output:
+    # Weekly: min($80,000, $63,200) / 52 * 0.55 = $668 (at maximum)
+    # Annual: $668 * 26 weeks = $17,368
+    ei_benefit: 17_368
+
+- name: Below minimum hours - no benefit
+  period: 2024
+  input:
+    employment_income: 40_000
+    ei_insurable_hours: 400
+  output:
+    ei_benefit: 0
+
+- name: No employment income - no benefit
+  period: 2024
+  input:
+    employment_income: 0
+    ei_insurable_hours: 600
+  output:
+    ei_benefit: 0
+
+- name: EI benefit for 2025
+  period: 2025
+  input:
+    employment_income: 60_000
+    ei_insurable_hours: 800
+  output:
+    # Weekly: $60,000 / 52 * 0.55 = $634.62
+    # Annual: $634.62 * 26 weeks = $16,500
+    ei_benefit: 16_500
+
+- name: EI benefit at 2025 maximum
+  period: 2025
+  input:
+    employment_income: 90_000
+    ei_insurable_hours: 1_200
+  output:
+    # Weekly: min($90,000, $65,700) / 52 * 0.55 = $694.90
+    # Annual: $694.90 * 26 weeks = $18,067.50
+    ei_benefit: 18_067.50

policyengine_canada/variables/gov/benefits.py

@@ -12,6 +12,7 @@ class benefits(Variable):
         "child_disability_benefit",
         "canada_workers_benefit",
         "dental_benefit",
+        "ei_benefit",
         "oas_net",
         # Ontario programs.
         "on_benefits",

policyengine_canada/variables/gov/cra/benefits/employment_insurance/ei_benefit.py

@@ -0,0 +1,20 @@
+from policyengine_canada.model_api import *
+
+
+class ei_benefit(Variable):
+    value_type = float
+    entity = Person
+    label = "Employment Insurance benefit"
+    definition_period = YEAR
+    unit = CAD
+    documentation = "Annual Employment Insurance benefit amount"
+    adds = ["ei_benefit"]
+
+    def formula(person, period, parameters):
+        # Get the weekly benefit amount
+        weekly_benefit = person("ei_weekly_benefit", period)
+
+        # For simplicity, assume 26 weeks of benefits (halfway between min 14 and max 45)
+        weeks_of_benefits = 26
+
+        return weekly_benefit * weeks_of_benefits

policyengine_canada/variables/gov/cra/benefits/employment_insurance/ei_eligible.py

@@ -0,0 +1,22 @@
+from policyengine_canada.model_api import *
+
+
+class ei_eligible(Variable):
+    value_type = bool
+    entity = Person
+    label = "Eligible for Employment Insurance"
+    definition_period = YEAR
+    documentation = "Whether person is eligible for Employment Insurance benefits"
+
+    def formula(person, period, parameters):
+        p = parameters(period).gov.cra.benefits.employment_insurance
+
+        # Check minimum hours requirement
+        insurable_hours = person("ei_insurable_hours", period)
+        meets_hours = insurable_hours >= p.minimum_hours
+
+        # Must have insurable earnings
+        insurable_earnings = person("ei_insurable_earnings", period)
+        has_earnings = insurable_earnings > 0
+
+        return meets_hours & has_earnings

policyengine_canada/variables/gov/cra/benefits/employment_insurance/ei_insurable_earnings.py

@@ -0,0 +1,17 @@
+from policyengine_canada.model_api import *
+
+
+class ei_insurable_earnings(Variable):
+    value_type = float
+    entity = Person
+    label = "Employment Insurance insurable earnings"
+    definition_period = YEAR
+    unit = CAD
+    documentation = "Total insurable earnings in the qualifying period"
+
+    def formula(person, period, parameters):
+        employment_income = person("employment_income", period)
+        p = parameters(period).gov.cra.benefits.employment_insurance
+
+        # Cap at maximum insurable earnings
+        return min_(employment_income, p.maximum_insurable_earnings)

policyengine_canada/variables/gov/cra/benefits/employment_insurance/ei_insurable_hours.py

@@ -0,0 +1,10 @@
+from policyengine_canada.model_api import *
+
+
+class ei_insurable_hours(Variable):
+    value_type = float
+    entity = Person
+    label = "Employment Insurance insurable hours"
+    definition_period = YEAR
+    unit = "hour"
+    documentation = "Number of insurable hours worked in the qualifying period"

policyengine_canada/variables/gov/cra/benefits/employment_insurance/ei_weekly_benefit.py

@@ -0,0 +1,29 @@
+from policyengine_canada.model_api import *
+
+
+class ei_weekly_benefit(Variable):
+    value_type = float
+    entity = Person
+    label = "Employment Insurance weekly benefit"
+    definition_period = YEAR
+    unit = CAD
+    documentation = "Weekly Employment Insurance benefit amount (calculated annually)"
+
+    def formula(person, period, parameters):
+        p = parameters(period).gov.cra.benefits.employment_insurance
+
+        # Check eligibility
+        eligible = person("ei_eligible", period)
+
+        # Calculate average weekly earnings
+        # Simplified - using annual earnings divided by 52
+        insurable_earnings = person("ei_insurable_earnings", period)
+        weekly_earnings = insurable_earnings / 52
+
+        # Apply benefit rate
+        benefit_amount = weekly_earnings * p.rate
+
+        # Cap at maximum
+        capped_benefit = min_(benefit_amount, p.maximum_weekly_benefit)
+
+        return where(eligible, capped_benefit, 0)