- First stable version with tax modelling, UBI reforms, and some benefits modelling.
- Details:
- Income Tax, National Insurance, Capital Gains Tax.
- All benefits are at least taken from survey reporting (can be switched on-off).
- Child Benefit is modelled, others such as Income Support, JSA (both types), Tax Credits can be simulated/reformed but require more reviewing in how to account for discrepancies caused by take-up rates.
- Four budget-neutral UBI reforms are implemented.
- 15 test cases (unit and integration) testing benefits and taxes.
- Simulation helper tools.
- Improvements to handling of time periods, MTRs and more
- Details:
- Time periods now appropriate, using an implementation of WEEK for most benefits
- MTRs handled properly and include a breakdown
- Simulation tools are improved and included in a class
- Improved documentation of parameters
- Tests now occur in 2021 to ensure FY20-21 parameters are used
- Fixed bug in CB-HITC that caused overestimation
- Added Jupyter-Book documentation
- More detailed disability variables
- Fixed IndividualSim reform handling
- Bug fixes
- MicroDataFrame and MicroSeries returned by default
- New interfact for microsimulation
- Microdata now generated and loaded in-model
- Sources added to tax logic
- Tests added
- Variable time periods made more consistent
- Derivative calculations made more efficient and have more options
- OpenFisca-UK now runs from the official OpenFisca-Core
- Tests for variable naming conventions
- Postcode lookup optional features available
- LHA rates for all BRMA areas added