When trade drives markup divergence: an application to auto markets

Agnes Norris Keiller, Tim Obermeier, Andreas Teichgraeber and John van Reenen

LSE Research Online Documents on Economics from London School of Economics and Political Science, LSE Library

Abstract: When firms sell in multiple markets, estimates of markups from the demand-side will generally diverge from estimates based on the supply-side (e.g. via production functions). The empirical examination of the importance of this fact has been hampered by the absence of market-specific cost data. To overcome this, we show production markups can be expressed as the revenue-weighted average of demand-based markups across markets (and products). This highlights that a divergence in demand-based and production-based markups is due to the revenue shares and markups across foreign and domestic markets, factors that can be assessed with readily available trade data. Using data from auto firms producing in the UK, we show production-based markups increased between 1998 and 2018 whereas demand-based markups decreased. These trends can be reconciled by an increase in the markup that UK-based producers gained on their exports, which we corroborate using administrative trade data. We find that increases in production-based markups have been driven by exports, particularly to China where foreign brands command high markups.

Keywords: markup divergence; auto markets; supply and demand (search for similar items in EconPapers)
JEL-codes: F10 L10 (search for similar items in EconPapers)
Pages: 41 pages
Date: 2024-07-26
New Economics Papers: this item is included in nep-com and nep-int
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Working Paper: When trade drives markup divergence: An application to auto markets (2024)
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