Great revision of basic knowledge.

A) Personal Income Tax

* tax deductions, tax credits, tax rates, social security contribution

* tax progresivity measurement

* OECD: Taxing Wages

B) Pensions

* financing: PAYG principle X fully funded principle

* benefit calculation: defined benefit X defined contribution

C) In-work tax credits

* EITC

* Bargain, Orsini. In-work policies in Europe: killing two birds with one stone? (https://www.iser.essex.ac.uk/research/publications/working-papers/euromod/em4-04.pdf)