Making, Buying, and Concurrent Sourcing: Implications for Operating Leverage and Stock Beta
Bart M. Lambrecht, Grzegorz Pawlina, João Teixeira
Review Of Finance, vol. 20, 2016, p. 1013-1043.

Household liquidity and incremental financing decisions: theory and evidence
M. Ricardo Cunha, Bart M. Lambrecht, Grzegorz Pawlina
Journal Of Business Finance And Accounting, vol. 38, 2011, p. 1016-1052.