Investment without Q
Vito D. Gala, João Ferreira Gomes, Tong Liu
Journal of Monetary Economics, vol. 116, 2020, p. 266-282.

Government Spending, Political Cycles, and the Cross Section of Stock Returns
Frederico Belo, Vito D. Gala, Jun Li
Journal of Financial Economics, vol. 107, 2013, p. 305-324.