The longer–term technical efficiency effects of management buyouts (MBOs) are evaluated using a stochastic production frontier approach on a panel of UK manufacturing firms. The results, based on the period 1986–1997, indicate that firms with the MBO governance structure: (1) have higher efficiency in the two years before the transaction but not prior to that; (2) have efficiency 7%, 7.5%, 4%, and 7% higher in each of the first four years post–buyout; (3) do not have superior efficiency beyond the fifth year post–buyout. This is consistent with MBOs creating managerial incentives that improve firm–level performance.