Parameterize common policy changes for easy use, including switching on and off all deductions/credits, turning deductions into credits, flipping refund-ability of credits, turning exemptions into credits, and adding CBO Budget Options.
There are a number typical policy changes that we should parameterize for easy use: - [x] Switch on and off all deductions/credits (we can use 'haircut' parameters) - [ ] Turn deductions into credits - [ ] Flip refund-ability of credits - [x] Turn exemption into credit - [x] Add [CBO Budget Options](https://www.cbo.gov/sites/default/files/cbofiles/attachments/49638-BudgetOptions.pdf) - [x] Option 53: Limit the Value of Itemized Deductions - [ ] More broadly, we should allow for a switch to a consumption tax system (x-tax) using the sources method (we may break this into another issue later). See [TPC's VAT paper](http://www.urban.org/uploadedpdf/1001533-Methodology-Distributing-VAT.pdf). We would not need to deal with a change in the price level for an x-tax. This interacts with #224. - [x] Dealing with everything in [Lee-Rubio](http://www.rubio.senate.gov/public/index.cfm/files/serve/?File_id=2d839ff1-f995-427a-86e9-267365609942) would give us practice with many of these