South By North Strategies, Ltd.

Working Economics doesn’t buy the argument that inequality is due to more working spouses in high-income households.

The first thing to note is that the presence of a working spouse, even a highly paid one, can potentially impact household income inequality but says nothing about the tremendous divergence of individual wages over the last few decades. Household incomes aggregate the labor income of all household members (which depends on how many members work, how much they work and how much they are paid), non-labor income (capital gains and so on) and any pensions, government transfers and other income. As we know,  the top 1 percent of households managed to more than double its share of national income between 1979 and 2007. Josh Bivens and I have argued that the dynamics underlying growing household income inequality are rising wage inequality, rising inequality in receipt of capital income (capital gains, dividends and so on) and the shift toward more capital income and less wage income. The demographic factor of working spouses is about how people combine into households and does not address and certainly cannot explain the huge increase in the wage growth of the top 1 percent of wage earners versus every other group.