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Productivity And Acquisitions In U.S. Coal Mining


  • David R Merrell


This paper extends the literature on the productivity incentives for mergers and acquisitions. We develop a stochastic matching model that describes the conditions under which a coal mine will change owners. This model suggests two empirically testable hypotheses: i. acquired mines will exhibit low productivity prior to being acquired relative to non-acquired mines and ii. extant acquired mines will show post-acquisition productivity improvements over their pre-acquisition productivity levels. Using a unique micro data set on the universe of U.S. coal mines observed from 1978 to 1996, it is estimated that acquired coal mines are significantly less productive than non-acquired mines prior to having been acquired. Additionally, there is observable and significant evidence of post-acquisition productivity improvements. Finally, it is found that having been acquired positively and significantly influences the likelihood that a coal mine fails.

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  • David R Merrell, 1999. "Productivity And Acquisitions In U.S. Coal Mining," Working Papers 99-17, Center for Economic Studies, U.S. Census Bureau.
  • Handle: RePEc:cen:wpaper:99-17

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    References listed on IDEAS

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    1. Black, Dan A. & McKinnish, Terra G. & Sanders, Seth G., 2003. "Does the availability of high-wage jobs for low-skilled men affect welfare expenditures? Evidence from shocks to the steel and coal industries," Journal of Public Economics, Elsevier, vol. 87(9-10), pages 1921-1942, September.

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