Taxcalc

| Contributor | PR | Description |
| :-- | :-- | :-- |
| andersonfrailey | 1170 | Add number of tax units with non-positive income and combined tax liability to diagnostic table |
| martinholmer | 1171 | Correct Policy wage growth rates to agree with CBO projection |
| andersonfrailey | 1193 | Add Stage 3 adjustment ratios to target SOI data on the distribution of interest income |

| Contributor | PR | Description |
| :-- | :-- | :-- |
| martinholmer | 1123 - 1131 | New JSON reform file examples and capabilities |
| martinholmer | 1148 | Separate reforms and economic assumptions into two separate JSON files |
| matthjensen | 1152 | Fix bugs in 10_min notebook |

| Contributor | PR | Description |
| :-- | :-- | :-- |
| Martin Holmer | 1081 | add ability to use an expression to specify a policy parameter |
| Martin Holmer | 1083 | expand scope of JSON reform file to include non-policy parameters |
| Martin Holmer | 1088 | fix capital-gains-reform bug reported by Cody Kallen |
| Martin Holmer | 1098 | add ability to conduct normative expected-utility analysis |
| Cody Kallen | 1104 | add ability to compute MTR with respect to charitable cash contribs |
| Zach Risher | 1092 | provide Pandas 0.19.1 compat by fixing dataframe.to_csv() usage |
| Zach Risher | 1094 | unify environment definition by removing requirements.txt |
| Matt Jensen | 1109 | reorganize current_law_policy.json and add section headers |
| Cody Kallen | 1084 | add dollar limit on itemized deductions |
| T.J. Alumbaugh | 1111 | add testing for Windows with Appveyor |

| Contributor | PR | Description |
| :-- | :-- | :-- |
| Cody Kallen | 1069 | add ability to simulate non-refundable dependent credit |
| Martin Holmer | 1072 | add ability to narrow investment income exclusion base |

| Contributor | PR | Description |
| :-- | :-- | :-- |
| Martin Holmer | 1051 | rename policy parameters for consistency |
| Matt Jensen | 1055 | add ability to simulate broader range of refundable CTC reforms |
| Martin Holmer | 1057 | add more income items into expanded income |