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		| Jing  Hang | 
	
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		| ''Market power, input substitution and the labor share'' | 
	
		| ( 2025, Vol. 45 No.2 ) | 
	
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		| An increase in the aggregate markup induces substitution of primary inputs for intermediate inputs, and substitution of labor for capital. Both effects lower the labor share if the inputs are complements. A reasonable calibration shows that a 4% increase in the markup lowers U.S. labor share by 7.5 percentage points, with input substitution accounting for about one third of the total impact. | 
	
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		| Keywords: markup,  labor share,  double marginalization,  input substitution | 
	
		| JEL: E2 - Macroeconomics: Consumption, Saving, Production, Employment, and Investment: General (includes Measurement and Data) O4 - Economic Growth and Aggregate Productivity: General
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		| | Manuscript Received : Feb 20 2025 |  | Manuscript Accepted : Jun 30 2025 | 
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