The Number of Bank Relationships and Borrowing Costs: The Role of Information Asymmetries
Diana Bonfim, Qinglei Dai, Francesco Franco
Journal Of Empirical Finance, vol. 46, 2018, p. 191-209.

Firms and Aggregate Dynamics
Francesco Franco, Thomas Philippon
Review of Economics and Statistics, vol. 89, 2007, p. 587-600.