Where the words come from
The definitions of income inequality and poverty, the causes of growing inequality (the shift towards skilled wages, technology and globalisation, household composition), inequality between countries, income as a flow and wealth as a stock, and the arguments on the trade-off between incentives and equality — Principles of Economics 2e, OpenStax, licensed CC BY 4.0. https://openstax.org/books/principles-economics-2e/pages/15-4-income-inequality-measurement-and-causes and https://openstax.org/books/principles-economics-2e/pages/15-5-government-policies-to-reduce-income-inequality. Changes: the widening of US wage gaps since the late 1970s kept as a US finding; US households, the US census and college-degree figures dropped; the country table reduced to the German, Brazilian and Indian top-fifth shares, rounded; the life-cycle, incentive, ladder-of-opportunity and political-support arguments condensed; the trade-off figure redrawn with the text's points A to F; "inheritance" and "stage of life" given cards of their own from section 15.5; all card wording and examples ours; "labor" to "labour"; British spelling.
The wealth and disposable income Gini coefficients for Great Britain, and the share of wealth held by the wealthiest one per cent and the least wealthy half — Household total wealth in Great Britain: April 2020 to March 2022, Office for National Statistics, Open Government Licence v3.0. https://www.ons.gov.uk/peoplepopulationandcommunity/personalandhouseholdfinances/incomeandwealth/bulletins/totalwealthingreatbritain/april2020tomarch2022. Changes: "the period April 2020 to March 2022" to "the two years to March 2022"; "FYE 2022" to "the year to March 2022"; the proportion held by the wealthiest 1% and least wealthy 50% written out; the flow and stock sentence follows OpenStax 2e section 15.5.
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