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Capital composition and the decline of the labor share: Why buildings matter

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  • Kerspien, Jacob
  • Madsen, Jakob B.
  • Strulik, Holger

Abstract

This paper argues that the decline in the labor share is not driven by the overall quantity of capital, but by its changing composition. Constructing annual macro data for 16 advanced countries over two centuries, we show that, since 1980, the relative decline in buildings capital and the associated increase in real prices of buildings have reduced the labor share because buildings and labor are complements. The decline in the labor share has been reinforced by the increase in machinery capital and the associated decline of real prices of machinery capital because machinery capital and labor are substitutes. Together, these shifts in capital composition account for a substantial portion of the observed decline in the labor share of income.

Suggested Citation

  • Kerspien, Jacob & Madsen, Jakob B. & Strulik, Holger, 2026. "Capital composition and the decline of the labor share: Why buildings matter," European Economic Review, Elsevier, vol. 184(C).
    • Handle: RePEc:eee:eecrev:v:184:y:2026:i:c:s0014292125002922
    DOI: 10.1016/j.euroecorev.2025.105242
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    Keywords

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    JEL classification:

    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • E22 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Investment; Capital; Intangible Capital; Capacity
    • E25 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Aggregate Factor Income Distribution

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