Competition among banks promotes growth and stability for an economy with production externality. Following Arrow and Debreu (1954), I formulate a standard growth model with externality — a two-period version of Romer (1986) — as a game among consumers, firms, and intermediaries. The...

Intro -- Contents -- I. INTRODUCTION -- II. MODEL SETTING AND CHARACTERISTICS -- III. UNIQUE EQUILIBRIUM CANDIDATE WITH STRATEGIC INTERMEDIATION -- IV. EXISTENCE OF AN EQUILIBRIUM WITH FREE RECONTRACTING OPPORTUNITY -- V. DISCUSSION -- VI. CONCLUDING REMARKS -- REFERENCES -- APPENDIX I. PROOFS...

This paper formally identifies an important role of banks: Banks competitively internalize production externalities and facilitate economic growth. I formulate a canonical growth model with externalities as a game among consumers, firms, and banks. Banks compete for deposits to seek monopoly...