US inequality since 1970 grew mostly within rather than between industries

Evidence

Because earnings inequality measures are not available at the firm level, we test our hypotheses at the industry level. Given that the increase in income inequality in the past three decades occurred mostly within rather than between industries ưMorgan and Tang 2007; Kim and Sakamoto 2008ƞ, industry is a sensible unit for an institutional analysis of income inequality. Organizational studies have repeatedly demonstrated that there is similarity among organizations within the same industry, reflecting both market and institutional mechanisms. We treat industry as a technical and normative field that influences firm behavior. There is substantial evidence indicating the strong presence of industry field effects in terms of a firm’s human resource practices around gender and race ưSkaggs 2008; Hirsh 2009; McTague, Stainback, and Tomaskovic-Devey 2009; Kelly et al. 2010ƞ. Thus, an industrial investigation is likely to provide informative estimates of firmlevel processes. — Ken-Hou Lin & Donald Tomaskovic-Devey, Financialization and U.S. Income…, 63

Categorization

  • XREF: Connects to within-vs-between decomposition debates (wage structure literature, Autor-Katz-Kearney); the reader’s earlier across-industry intuition is thereby qualified. — connects to: Most earnings inequality growth occurred within industries, not between them. — Ken-Hou Lin & Donald Tomaskovic-Devey, Financialization and U.S. Income…, 81; Structural inequality has redistributed trillions from American workers to the richest — Clara E. Mattei, The Capital Order: How Economists…, 84

Broader Connections