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Merge pull request #1594 from PolicyEngine/add-disabled-students-allowance
Add Disabled Students' Allowance
2 parents a9c790a + 35510e3 commit 3be27a8

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‎changelog.d/disabled-students-allowance.added.md‎

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Add a first-pass Disabled Students' Allowance model for England higher-education students.

‎policyengine_uk/parameters/gov/dfe/disabled_students_allowance/maximum.yaml‎

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description: Maximum Disabled Students' Allowance for higher-education students in England.
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values:
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2025-01-01: 27_783
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2026-01-01: 27_783
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metadata:
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unit: currency-GBP
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period: year
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label: Disabled Students' Allowance maximum amount
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reference:
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- title: Help if you're a student with a learning difficulty, health problem or disability
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href: https://www.gov.uk/disabled-students-allowance-dsa

‎policyengine_uk/programs.yaml‎

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verified_start_year: 2025
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notes: First-pass England model using the published initial contribution and household-income reduction formula, with explicit placement and eligible-expense inputs because the survey does not observe reimbursable travel costs
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- id: disabled_students_allowance
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name: Disabled Students' Allowance
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full_name: Student Finance England Disabled Students' Allowance
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category: Benefits
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agency: DfE
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status: partial
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coverage: England
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variable: disabled_students_allowance
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parameter_prefix: gov.dfe.disabled_students_allowance
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verified_start_year: 2025
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notes: First-pass England model using the published annual cap, higher-education evidence as the default course proxy, a narrow qualifying-condition proxy with explicit override, and explicit disability-related study support costs
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- id: bursary_fund_16_to_19
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name: 16 to 19 Bursary Fund
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full_name: 16 to 19 Bursary Fund

‎policyengine_uk/tests/policy/baseline/gov/dfe/disabled_students_allowance/disabled_students_allowance.yaml‎

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- name: Disabled Students' Allowance reimburses eligible support needs below the cap
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period: 2025
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input:
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people:
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student:
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age: 20
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current_education: TERTIARY
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is_disabled_for_benefits: true
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disabled_students_allowance_eligible_expenses: 12_000
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benunits:
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benunit:
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members: ["student"]
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households:
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household:
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members: ["student"]
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country: ENGLAND
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output:
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disabled_students_allowance_course_eligible: [true]
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disabled_students_allowance_has_qualifying_condition: [true]
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disabled_students_allowance_eligible: [true]
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disabled_students_allowance: [12_000]
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- name: Disabled Students' Allowance is capped at the published annual maximum
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period: 2025
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input:
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people:
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student:
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age: 24
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current_education: TERTIARY
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is_disabled_for_benefits: true
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disabled_students_allowance_eligible_expenses: 30_000
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benunits:
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benunit:
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members: ["student"]
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households:
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household:
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members: ["student"]
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country: ENGLAND
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output:
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disabled_students_allowance: [27_783]
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- name: Disabled Students' Allowance excludes equivalent support from another scheme
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period: 2025
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input:
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people:
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student:
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age: 22
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current_education: TERTIARY
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is_disabled_for_benefits: true
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disabled_students_allowance_eligible_expenses: 5_000
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disabled_students_allowance_receives_equivalent_support: true
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benunits:
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benunit:
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members: ["student"]
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households:
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household:
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members: ["student"]
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country: ENGLAND
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output:
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disabled_students_allowance_eligible: [false]
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disabled_students_allowance: [0]
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- name: Disabled Students' Allowance default qualifying-condition proxy is narrow
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period: 2025
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input:
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people:
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student:
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age: 21
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current_education: TERTIARY
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disabled_students_allowance_eligible_expenses: 4_000
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benunits:
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benunit:
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members: ["student"]
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households:
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household:
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members: ["student"]
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country: ENGLAND
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output:
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disabled_students_allowance_has_qualifying_condition: [false]
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disabled_students_allowance_eligible: [false]
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disabled_students_allowance: [0]
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- name: Disabled Students' Allowance accepts explicit condition and course overrides
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period: 2025
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input:
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people:
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student:
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age: 21
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current_education: POST_SECONDARY
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disabled_students_allowance_has_qualifying_condition: true
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disabled_students_allowance_course_eligible: true
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disabled_students_allowance_eligible_expenses: 4_000
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benunits:
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benunit:
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members: ["student"]
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households:
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household:
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members: ["student"]
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country: ENGLAND
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output:
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disabled_students_allowance_eligible: [true]
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disabled_students_allowance: [4_000]

‎policyengine_uk/variables/gov/dfe/disabled_students_allowance/disabled_students_allowance.py‎

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from policyengine_uk.model_api import *
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class disabled_students_allowance(Variable):
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value_type = float
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entity = Person
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label = "Disabled Students' Allowance"
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documentation = (
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"Student Finance England Disabled Students' Allowance. "
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"The published rules provide an annual cap, but actual awards depend on an "
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"individual needs assessment rather than a public formula. This first-pass "
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"model therefore treats `disabled_students_allowance_eligible_expenses` as "
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"the assessed annual study-related support need, net of any required personal "
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"computer contribution and excluding ordinary student costs."
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)
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definition_period = YEAR
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quantity_type = FLOW
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unit = GBP
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defined_for = "disabled_students_allowance_eligible"
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def formula(person, period, parameters):
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expenses = person("disabled_students_allowance_eligible_expenses", period)
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maximum = parameters(period).gov.dfe.disabled_students_allowance.maximum
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return min_(expenses, maximum)

‎policyengine_uk/variables/gov/dfe/disabled_students_allowance/disabled_students_allowance_course_eligible.py‎

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from policyengine_uk.model_api import *
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class disabled_students_allowance_course_eligible(Variable):
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value_type = bool
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entity = Person
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label = "Course is eligible for Disabled Students' Allowance"
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documentation = (
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"Whether the person's course is eligible for Disabled Students' Allowance. "
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"This can be set explicitly in simulations. By default, the model uses the "
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"existing higher-education evidence proxy from the maintenance-loan model."
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)
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definition_period = YEAR
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set_input = set_input_dispatch_by_period
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def formula(person, period, parameters):
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return person("maintenance_loan_in_higher_education", period)

‎policyengine_uk/variables/gov/dfe/disabled_students_allowance/disabled_students_allowance_eligible.py‎

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from policyengine_uk.model_api import *
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class disabled_students_allowance_eligible(Variable):
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value_type = bool
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entity = Person
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label = "Eligible for Disabled Students' Allowance"
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documentation = (
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"Whether the person is eligible for Student Finance England Disabled "
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"Students' Allowance. This first-pass model uses the published England "
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"coverage rule, a higher-education default course proxy, a narrow "
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"qualifying-condition proxy with explicit override, and an explicit "
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"equivalent-support exclusion."
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)
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definition_period = YEAR
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defined_for = "would_claim_disabled_students_allowance"
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def formula(person, period, parameters):
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in_england = person("maintenance_loan_in_england_system", period)
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course_eligible = person("disabled_students_allowance_course_eligible", period)
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qualifying_condition = person(
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"disabled_students_allowance_has_qualifying_condition", period
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)
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receives_equivalent_support = person(
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"disabled_students_allowance_receives_equivalent_support", period
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)
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expenses = person("disabled_students_allowance_eligible_expenses", period)
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return (
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in_england
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& course_eligible
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& qualifying_condition
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& ~receives_equivalent_support
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& (expenses > 0)
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)

‎policyengine_uk/variables/gov/dfe/disabled_students_allowance/disabled_students_allowance_eligible_expenses.py‎

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from policyengine_uk.model_api import *
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class disabled_students_allowance_eligible_expenses(Variable):
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value_type = float
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entity = Person
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label = "Eligible Disabled Students' Allowance expenses"
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documentation = (
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"Annual study-related disability support costs that Disabled Students' "
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"Allowance can reimburse. This should exclude ordinary student costs, any "
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"support already provided by another funding source, and any personal "
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"computer contribution the student must pay themselves."
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)
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definition_period = YEAR
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unit = GBP
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quantity_type = FLOW
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default_value = 0
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set_input = set_input_dispatch_by_period

‎policyengine_uk/variables/gov/dfe/disabled_students_allowance/disabled_students_allowance_has_qualifying_condition.py‎

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from policyengine_uk.model_api import *
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class disabled_students_allowance_has_qualifying_condition(Variable):
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value_type = bool
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entity = Person
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label = "Has a qualifying condition for Disabled Students' Allowance"
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documentation = (
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"Whether the person has a disability, long-term health condition, mental "
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"health condition, or specific learning difficulty that can qualify for "
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"Disabled Students' Allowance. This can be set explicitly in simulations. "
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"By default, the model uses observed disability-benefit receipt or explicit "
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"blindness input, which is narrower than the full legal concept."
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)
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definition_period = YEAR
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set_input = set_input_dispatch_by_period
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def formula(person, period, parameters):
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return person("is_disabled_for_benefits", period) | person("is_blind", period)

‎policyengine_uk/variables/gov/dfe/disabled_students_allowance/disabled_students_allowance_receives_equivalent_support.py‎

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from policyengine_uk.model_api import *
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class disabled_students_allowance_receives_equivalent_support(Variable):
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value_type = bool
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entity = Person
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label = "Receives equivalent support that excludes Disabled Students' Allowance"
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documentation = (
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"Whether the person receives equivalent disability-related study support "
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"from another funding source, such as an NHS Disabled Students' Allowance "
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"or social work bursary, and is therefore excluded from Student Finance "
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"England Disabled Students' Allowance."
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)
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definition_period = YEAR
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default_value = False
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set_input = set_input_dispatch_by_period

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