My thesis is composed of four essays in empirical corporate finance. In the first chapter I study the role of multinational firms in the propagation of economic policy uncertainty (EPU) across countries. I find that (multinational) firms hold back investment in a country subjected to higher EPU which they reallocate to projects in other countries. I find the impact to be higher for firms with tighter financial constraint. My findings highlight that multinationals could potentially stabilize the escalation of regional policy uncertainty shocks to global crisis. In the second chapter, using subsidiary-level data for Indian firms and staggered elections across Indian states, I show that political uncertainty's impact on firm performance varies...